Question : A pond of water appears less deep due to:

Option 1: reflection

Option 2: diffraction

Option 3: refraction

Option 4: polarisation

Question : Which one of the following processes is responsible for the glittering of air bubbles rising through water?

Option 1: Reflection of light

Option 2: Refraction of light

Option 3: Total internal reflection of light

Option 4: Scattering of light

Question : Optical fibres are based on the phenomenon of which of the following?

Option 1: Interference

Option 2: Dispersion

Option 3: Diffraction

Option 4: Total internal reflection

Question : A mirage occurs because of:

Option 1: reflction by hot ground

Option 2: total internal reflection by layers of air

Option 3: interference of light

Option 4: diffraction of light

Question : Rainbow are produced when sunlight:

Option 1: incident on rain drops hanging in the atmosphere is dispersed after suffering refraction

Option 2: incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection

Option 3: incident on raindrops hanging in the atmosphere is dispersed after suffering reflection

Option 4: None of the given statements is correct