Wave Optics

On reflection of light from rarer to denser medium, the light waves suffers a phase difference of

• 0

When a light travels from one medium to other, which of the following does not change

• Wavelength

• frequency

• Amplitude

• Velocity

• 1

• 1.44

• 2

• 1.73

• 0

A convergent lens will become less convergent in

• Oil

• water

• Both

• None

A light ray traveling in the denser medium has refractive index 1.41. Find the critical angle?

Total Internal reflection occurs when the light travels from

• A rarer medium to denser medium

• A denser medium to rarer medium

• A rarer medium to denser medium with angle of incidence grater than critical angle

• A denser medium to rarer medium with angle of incidence grater than critical angle

Consider two mediums in which one medium has R.I of 1.60 and the other has 1.33. Find the minimum angle for incidence for which the light ray undergo Total internal reflection.

The greater the value of refractive index of a medium, the bending of light will be

• Greater

• lesser

• No change

• None

Two independent light sources having same wavelength and same amplitude. Can they act as coherent sources?

• YES

• NO

• May be

• can't say