PHY103 Tma – Geometric and Wave Optics

PHY103
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1. As per second law of reflection, angle of incidence is equal to

angle of abnormality

angle of refraction

normal ray

angle of reflection

2. In swimming pools they appear shallower than they are actual because of

reflection

refraction

both reflection and refraction

none

3. A camera employs a ___ lens to form ___ images

converging , real

converging , virtual

diverging , real

diverging , virtual

4. In concave lenses, a distant object appears

upright

virtual

magnified

inverted

5. In most cameras the location of the image is adjusted to appear on the film by changing the

position of the lens

diameter of the diaphragm

shape of the lens

focal length of the lens.

6. Angle between incident ray and normal is known as

angle of abnormality

angle of refraction

angle of reflection

angle of incidence

7. Concave lens

shrinks the image

magnifies the image

sharpens the images

increases the contrast of image

8. Two thin (small angled) prisms are combined to produce dispersion without deviation. One prism has angle 5 degrees and refractive index 1.56. If the other prism has refractive index 1.7, what is its angle?

3º

4º

5º

6º

9. A human eye employs a ___ lens to form ____images.

converging , real

converging , virtual

diverging , real

diverging , virtual

10. Concave lens is also known as

converging lens

diverging lens

dispersing lens

conducting lens

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