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General Awareness Quiz - Set 18

Published on Monday, June 06, 2016
1. Dioptre is the unit of power of
a) convex mirrors
b) concave mirrors
c) concave lenses
d) lenses irrespective of types
2. In the visible spectrum which colour has the shortest wavelength?
a) Red
b) Blue
c) Yellow
d) Violet
3. Which part of the eye is analogous to the shutter in a photographic camera?
a) Lens
b) Iris
c) Retina
d) Eyelid
4. The image of an object formed on the retina of the eye is
a) virtual and upright
b) virtual and inverted
c) real and inverted
d) real and upright
5. Holography is the technique of
a) taking photos of various objects
b) recording and reproducing three dimensional images
c) tracing out planets and stars in the sky
d) transmitting light waves
6. The image of an object formed in a plane mirror
a) is real
b) is virtual
c) can be obtained on a screen
d) is slightly bigger than the object
7. Sound travels fastest in
a) air
b) water
c) iron
d) vacuum
8. The characteristics of a musical note are
a) loudness
b) pitch
c) quality or timbre
d) all the above
9. The maximum displacement of the particle in a mechanical wave motion is known as
a) amplitude
b) vibration
c) frequency
d) phase
10. Hydrophone is an instrument used
a) for measuring relative density of liquids
b) by ships to pass on messages
c) for determining the depth of ocean bottoms etc.
d)by deaf people to aid hearing

Answers:


1. d) lenses irrespective of types
2. d) Violet
3. d) Eyelid
4. c) real and inverted
5. b) recording and reproducing three dimensional images
6. b) is virtual
7. c) iron
8. d) all the above
9. a) amplitude
10. c) for determining the depth of ocean bottoms etc

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