## Question

### Solution

Correct option is

Wavelength 0.01 nm will be absent but wavelength 0.02 nm will be present

V = 66 kV

= 66,000 V. Now   = 0.0187 nm.

Since wavelength 0.01 nm is less than it will be absent from the continuous spectrum.

#### SIMILAR QUESTIONS

Q1

What is the unit of Planck’s constant?

Q2

What are the dimensions of Planck’s constant?

Q3

An X-rays tube produces X-rays whose shortest wavelength is 0.2475 Å. The operating voltage of the tube must be

Q4

X-rays can be diffracted from crystals like the diffraction of light from a grating. The crystal grating for X-rays has a grasting element

Q5

In the continuous part of the spectrum of X-rays the limiting frequency is

Q6

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Q7

The potential difference applied to an X-ray tube is increased. As s result, in the emitted radiation,

Q8

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Q9

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Q10

The minimum wavelength of X-rays produced in an X-ray tube is when the operating voltage is V. What is minimum wavelength of the X-rays when the operating voltage is ?