Warning (2): apc_store() [function.apc-store]: Potential cache slam averted for key 'myapp_cake_model_default_edumple_static_pages_expires' [CORE/Cake/Cache/Engine/ApcEngine.php, line 69]
Code Context
$key = 'myapp_cake_model_default_edumple_static_pages'
$value = array(
	'id' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11,
		'key' => 'primary'
	),
	'cms_category' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11,
		'key' => 'index'
	),
	'heading' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'css_js_scripts' => array(
		'type' => 'text',
		'null' => false,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'name' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'title' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'slug' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'key' => 'index',
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'url' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'parent_id' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	),
	'description' => array(
		'type' => 'text',
		'null' => false,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'meta_keywords' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'meta_description' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'faq_details' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'question_heading' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'question_ids' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'is_active' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 2
	),
	'created' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	),
	'modified' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	)
)
$duration = (int) 10
$expires = (int) 1714161578
apc_store - [internal], line ??
ApcEngine::write() - CORE/Cake/Cache/Engine/ApcEngine.php, line 69
Cache::write() - CORE/Cake/Cache/Cache.php, line 298
DataSource::_cacheDescription() - CORE/Cake/Model/Datasource/DataSource.php, line 308
Mysql::describe() - CORE/Cake/Model/Datasource/Database/Mysql.php, line 318
Model::schema() - CORE/Cake/Model/Model.php, line 1304
Model::getColumnType() - CORE/Cake/Model/Model.php, line 1344
DboSource::_parseKey() - CORE/Cake/Model/Datasource/DboSource.php, line 2559
DboSource::conditionKeysToString() - CORE/Cake/Model/Datasource/DboSource.php, line 2514
DboSource::conditions() - CORE/Cake/Model/Datasource/DboSource.php, line 2401
DboSource::buildStatement() - CORE/Cake/Model/Datasource/DboSource.php, line 1719
DboSource::generateAssociationQuery() - CORE/Cake/Model/Datasource/DboSource.php, line 1515
DboSource::read() - CORE/Cake/Model/Datasource/DboSource.php, line 1078
Model::find() - CORE/Cake/Model/Model.php, line 2630
include - APP/Plugin/Staticpages/Config/routes.php, line 5
include - APP/Config/routes.php, line 224
Dispatcher::_loadRoutes() - CORE/Cake/Routing/Dispatcher.php, line 278
Dispatcher::parseParams() - CORE/Cake/Routing/Dispatcher.php, line 215

Warning (2): apc_store() [function.apc-store]: Potential cache slam averted for key 'myapp_cake_model_default_edumple_static_pages' [CORE/Cake/Cache/Engine/ApcEngine.php, line 70]
Code Context
$key = 'myapp_cake_model_default_edumple_static_pages'
$value = array(
	'id' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11,
		'key' => 'primary'
	),
	'cms_category' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11,
		'key' => 'index'
	),
	'heading' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'css_js_scripts' => array(
		'type' => 'text',
		'null' => false,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'name' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'title' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'slug' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'key' => 'index',
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'url' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'parent_id' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	),
	'description' => array(
		'type' => 'text',
		'null' => false,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'meta_keywords' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'meta_description' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'faq_details' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'question_heading' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'question_ids' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'is_active' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 2
	),
	'created' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	),
	'modified' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	)
)
$duration = (int) 10
$expires = (int) 1714161578
apc_store - [internal], line ??
ApcEngine::write() - CORE/Cake/Cache/Engine/ApcEngine.php, line 70
Cache::write() - CORE/Cake/Cache/Cache.php, line 298
DataSource::_cacheDescription() - CORE/Cake/Model/Datasource/DataSource.php, line 308
Mysql::describe() - CORE/Cake/Model/Datasource/Database/Mysql.php, line 318
Model::schema() - CORE/Cake/Model/Model.php, line 1304
Model::getColumnType() - CORE/Cake/Model/Model.php, line 1344
DboSource::_parseKey() - CORE/Cake/Model/Datasource/DboSource.php, line 2559
DboSource::conditionKeysToString() - CORE/Cake/Model/Datasource/DboSource.php, line 2514
DboSource::conditions() - CORE/Cake/Model/Datasource/DboSource.php, line 2401
DboSource::buildStatement() - CORE/Cake/Model/Datasource/DboSource.php, line 1719
DboSource::generateAssociationQuery() - CORE/Cake/Model/Datasource/DboSource.php, line 1515
DboSource::read() - CORE/Cake/Model/Datasource/DboSource.php, line 1078
Model::find() - CORE/Cake/Model/Model.php, line 2630
include - APP/Plugin/Staticpages/Config/routes.php, line 5
include - APP/Config/routes.php, line 224
Dispatcher::_loadRoutes() - CORE/Cake/Routing/Dispatcher.php, line 278
Dispatcher::parseParams() - CORE/Cake/Routing/Dispatcher.php, line 215

Warning (512): _cake_model_ cache was unable to write 'default_edumple_static_pages' to Apc cache [CORE/Cake/Cache/Cache.php, line 309]
Code Context
                ),
                E_USER_WARNING
            );
$key = 'default_edumple_static_pages'
$value = array(
	'id' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11,
		'key' => 'primary'
	),
	'cms_category' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11,
		'key' => 'index'
	),
	'heading' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'css_js_scripts' => array(
		'type' => 'text',
		'null' => false,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'name' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'title' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'slug' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'key' => 'index',
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'url' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'parent_id' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	),
	'description' => array(
		'type' => 'text',
		'null' => false,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'meta_keywords' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'meta_description' => array(
		'type' => 'string',
		'null' => false,
		'default' => null,
		'length' => (int) 255,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'faq_details' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'question_heading' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'question_ids' => array(
		'type' => 'text',
		'null' => true,
		'default' => null,
		'length' => null,
		'collate' => 'latin1_swedish_ci',
		'charset' => 'latin1'
	),
	'is_active' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 2
	),
	'created' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	),
	'modified' => array(
		'type' => 'integer',
		'null' => false,
		'default' => null,
		'length' => (int) 11
	)
)
$config = '_cake_model_'
$settings = array(
	'prefix' => '*****',
	'engine' => 'Apc',
	'path' => '/var/www/app/tmp/cache/models/',
	'serialize' => false,
	'duration' => (int) 10,
	'probability' => (int) 100,
	'groups' => array()
)
$success = false
Cache::write() - CORE/Cake/Cache/Cache.php, line 309
DataSource::_cacheDescription() - CORE/Cake/Model/Datasource/DataSource.php, line 308
Mysql::describe() - CORE/Cake/Model/Datasource/Database/Mysql.php, line 318
Model::schema() - CORE/Cake/Model/Model.php, line 1304
Model::getColumnType() - CORE/Cake/Model/Model.php, line 1344
DboSource::_parseKey() - CORE/Cake/Model/Datasource/DboSource.php, line 2559
DboSource::conditionKeysToString() - CORE/Cake/Model/Datasource/DboSource.php, line 2514
DboSource::conditions() - CORE/Cake/Model/Datasource/DboSource.php, line 2401
DboSource::buildStatement() - CORE/Cake/Model/Datasource/DboSource.php, line 1719
DboSource::generateAssociationQuery() - CORE/Cake/Model/Datasource/DboSource.php, line 1515
DboSource::read() - CORE/Cake/Model/Datasource/DboSource.php, line 1078
Model::find() - CORE/Cake/Model/Model.php, line 2630
include - APP/Plugin/Staticpages/Config/routes.php, line 5
include - APP/Config/routes.php, line 224
Dispatcher::_loadRoutes() - CORE/Cake/Routing/Dispatcher.php, line 278
Dispatcher::parseParams() - CORE/Cake/Routing/Dispatcher.php, line 215
call_user_func - [internal], line ??

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An Electron And A Photon Each has a Wavelength 1.00 Nm. Find Their Momenta. Given, 

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Question

An electron and a photon each has a wavelength 1.00 nm. Find their momenta. Given, 

• None of these

• 

• 

• 

easy

Solution

Correct option is

The momentum associated with a photon, or a particle of wavelength , is given by  

         

             

             . 

Download JEE Question paper & Solution Download JEE Important questions Download Complete syllabus of Maths, Physics, Chemistry

SIMILAR QUESTIONS

Q1

The distance of the closest approach of an alpha particle fired at a nuclear with momentum p is r₀. The distance of the closest approach when the alpha particle is fired at the same nucleus with momentum 2p will be   

easy View solution

Q2

In the Bohr model of the hydrogen atom, the ratio of the kinetic energy to the total energy of the electron in a quantum state n is

easy View solution

Q3

The mass per nucleon in a heavy hydrogen atom is

easy View solution

Q4

When high energy alpha-particle  pass through nitrogen gas, an isotope of oxygen is formed with the emission of particles named x. The nuclear reaction is

           

what is the name of x?

easy View solution

Q5

The distance of the closest approach of an alpha particle fired at a nucleus with kinetic energy K is r­₀. The distance of the closest approach when the alpha particle is fired at the same nucleus with kinetic energy 2K will be

easy View solution

Q6

 

Calculate de-Broglie wavelength for electron and proton moving with same speed of 10⁵ ms^–1.

easy View solution

Q7

Calculate the de-Broglie wavelength of a proton of kinetic energy 500 eV. The mass of proton is . 

.

easy View solution

Q8

For what kinetic energy of a neutron will the associated de-Broglie wavelength be ? The mass of neutron is . 

easy View solution

Q9

A particle is moving three times as fast as an electron. The ratio of the de-Broglie wavelength of the particle to that of the electron is . Calculate the particle’s mass and identify the particle.

medium View solution

Q10

Crystal diffraction experiments can be performed using X-rays or electron accelerated through appropriate voltage. Which probe, an X-ray photon or the electron, has greater energy? Take the wavelength of either probe equal to 1 Å, which is of the order of interatomic spacing in the crystal lattice. Mass of electron is .  

   

diffcult View solution