general knowledge physics 1

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Light year is a unit of
A. time
B. distance
C. light
D. intensity of light

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8.

Mirage is due to
A. unequal heating of different parts of the atmosphere
B. magnetic disturbances in the atmosphere
C. depletion of ozone layer in the atmosphere
D. equal heating of different parts of the atmosphere

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9.

Light from the Sun reaches us in nearly
A. 2 minutes
B. 4 minutes
C. 8 minutes
D. 16 minutes

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10.

Stars appears to move from east to west because
A. all stars move from east to west
B. the earth rotates from west to east
C. the earth rotates from east to west
D. the background of the stars moves from west to east

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11.

Pa(Pascal) is the unit for
A. thrust
B. pressure
C. frequency
D. conductivity

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