Q12 Application of rectilinear propagation of light is/are
1 point
Formation of shadow
day and night occur
eclipse occur
all
Q13 A pinhole camera is a simple device used to take photographs of
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luminous object
non luminous object
stationary object
none of these
Q14 A solar eclipse can occur only on a
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full moon day
new moon day
both
none of these
Q15 The sun is completely blocked by the moon
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total solar eclipse
partial solar eclipse
both
none
Q16 the moon is a luminous body.
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T
F
Q17 A opaque object does not allow any light to pass through it.
1 point
T
F
Q18 Most objects around us are luminous.
1 point
T
F
Q19 A shadow may or may not look like the actual shape of the object.
1 point
T
F
Q20 A shadow is formed when an opaque object blocks the path of light.
1 point
T
F
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Answer:
sorry I didn't know that
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