Light Test - 4...

The focal length of lens does not depend on

A microscope is focused on an ink mark on the top of a table. If we place a 3 cm thick glass slab on it, how should the microscope be moved to focus the ink spot again?

What are the respective minimum and maximum distances between a convex lens and an object for the magnification of a real image to be greater than 1?

What is the relation between refractive index 'n' and the wavelength of light?

It is said that the sun becomes visible before the actual rise and remains visible even after the actual setting. This makes the day a bit longer. It happens due to

The dual nature of light is exhibited by:

Which of the following statements is true?

Which of the following produce a virtual image smaller in size than the object?

If the angle of incidence is I and that of refraction is r, the speed of light in the medium to which the light is refracted from air is

A glass slab of thickness 4 cm contains the same number of waves as 5 cm of water when both are traversed by the same monochromatic ray of light. The refractive index of water is 4/3, what is the refractive index for glass?

Light waves projected on oil shows colour due to _________

A glass slab of thickness 4 cm contains the same number of waves as 5 cm of water when both are traversed by the same monochromatic light. If the refractive index of water is 4/3, what is the refractive index of glass?

What will be the wavelength of sodium light in glass if it is 589.3 nm in air? (The refractive index of glass is 1.5.)

The refractive index of glass with respect to air is 1.6. The refractive index of air w.r.t. glass is

 Light in air is incident upon a piece of crown glass at an angle of incidence 45.0°. What is the angle of refraction?

The refractive index of water is 1.333 and that of glass is 1.500. If the speed of light in glass is 2 x 10⁸ ms^–1, then what is the speed of light in water?