Question 1: Does critical angle based on wavelength used?
Question 2: Name the phenomenon responsible for the mirage formation.
Question 3: Does a prism displace or deviates an incident ray?
Question 4: Name the factors on which light reflected from a surface based on?
Question 5: A thin prism of 600 gives deviation of 300. What is the refractive index of the material of prism?
Question 6: For what angle of incidence the lateral shift generated by a parallel sided glass slab is maximum?
Question 7: What will be the color of the sky in the absence of atmosphere?
Question 8: You are given with four lenses of focal lengths 1cm, 3cm, 10cm and 100 cm. Which two would you favor for a microscope and which two for a telescope?
Question 9: How deep will a 4 m tank appear when seen in air due to the optical illusion? The Refractive index of water is 4/3.
Question 10: Name the color having:
a) Minimum speed
b) Maximum speed via a prism.
Question 11: What do you mean by the term spherical aberration of a mirror? How can it be minimized?
Question 12: Yellow light of wavelength 589 nm is incident on a boundary separating air and glass. Find out the speed, wavelength and frequency for:
a) Reflected light
b) Refracted light.
Refractive index of glass for yellow light is 1.5
Question 13: Two thin lenses containing focal lengths having focal lengths +20 cm and -30 cm are put in contact. The doublet behaves as an achromatic lens. Find out the focal length of this doublet. What will be the converging power if the focal length of the two lenses I s made the same?
Question 14: Derive mirror formula for concave mirror forming the virtual image.
Question 15: The refractive index of glass is 1.5. Determine the time taken by light to travel 1m thickness of the glass? Speed of light in vacuum is 3 x 108 m/s.