Question

Solution

Correct option is

The full image is formed but it will be less bright

The full image is formed but it will be less bright.

SIMILAR QUESTIONS

Q1

A motor car is fitted with a convex driving mirror of focal length 20 cm. A second motor car 2.1 m broad and 1.05 m high is 4 m behind the first car. What is the size of the image of the second car as seen in the mirror of the first?

Q2

The refractive index of a glass prism depends upon

Q3

A prism of refractive index of has a refracting angle of 60o. At what angle must a ray be incident on it so that it suffers a minimum deviation?

Q4

A ray of light in a medium of refractive index μ1 is partly reflected and refracted at the boundary of a medium of refractive index μ2, as shown in fig. If BOC = 90o. The value of angle i is given by Q5

A rectangular block of glass of refractive index μ and thickness d is placed over an ink dot made on a pice of paper lying on a table. When viewed from above, the dot will appear to be raised by an amount given by

Q6

Two transparent media A and B are separated by a plane boundary. The speed of light in medium A is and in medium B The critical angle for which a ray of light going from A toB is totally internally reflected is

Q7

A convex glass lens (μg = 1.5) has a focal length of 8 cm when placed in air. What is the focal length of the lens when it is immersed in water (μw = 4/3)?

Q8

A plano-concave lens is made of glass of refractive index 1.5 and the radius of curvature of the curved face is 50 cm. The power of the lens is

Q9

A convex lens of focal length 50 cm and a concave lens of focal length 100 cm are separated by a distance of 10 cm. What is the power of the combination?

Q10

The equi-convex lens, shown in the figure, has a focal length f. What will be the focal length of each half if the lens it cut along AB? (See fig.) 