Light Test - 10...

The region where light is totally or partially cut off by an opaque body is called

Which of the following statements is incorrect?

Light is called a

Rajan moves towards a plane mirror with a speed of 8 m/s. Then, he sees his image to be moving towards him with a speed of

In the case of a concave mirror, the image coincides with the object when the object is placed at

Which of the following is the relation between focal length (f) and radius of curvature (R)?

What is the nature of the image formed in a periscope?

According to the law of reflection,

If the velocity of light in vacuum is 3 10⁸ m/s, find the refractive index of water.
(Take velocity of light in water = 2.26 10⁸ m/s)

On which of the following factors does the deviation produced by an equilateral prism not depend?

A ray of light incident at an angle of 45° on a prism of refracting angle 60° suffers a minimum deviation. What is the angle of minimum deviation?

When a ray of light in air is incident along the normal to the boundary of air glass surface, it will

A ray of light passes from medium 1 to medium 2. Which of the following characteristics of the refracted ray will differ from that/those of the incident ray?

A virtual image larger than the object can be produced by

For an object placed between the optical centre and focus of a convex lens, the image is

Which of the following figures is correct?

Which of the following colours of the spectrum of white light has/have wavelength(s) longer than that of blue light?

Why does the sky appear dark instead of blue to an astronaut?

A transparent spherical structure that refracts light into the eye is called

If the velocity of light in vacuum is 3 10⁸ m/s, the velocity of light in diamond is
(Given: The refractive index of diamond is 2.417)