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Q 1.
A diverging mirror is?
Ans.
Convex mirror.
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Q 2.
Splitting of white light into seven colors is called?
Ans.
Reflection of light.
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Q 3.
Change in the path of light after striking a mirror is called?
Ans.
Reflection of light.
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Q 4.
Which lens form always a virtual image?
Ans.
Concave lens.
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Q 5.
Which mirror form a real image?
Ans.
Concave mirror.
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Q 6.
Image formed by a convex mirror?
Ans.
Always virtual and smaller in size.
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Q 7.
Image formed by a Plane mirror?
Ans.
Always same size of the object.
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Q 8.
Which image cannot be obtained on a screen?
Ans.
Concave lens image.
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Q 9.
The rear view mirror of a car is a plane mirror. A driver is reversing car at a speed of 2 m/s. The driver sees in his rear view mirror the image of a truck parked behind his car. The speed at which the image of the truck appears to approach the driver will be?
Ans.
4 m/s.
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Q 10.
David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be?
Ans.
6 m.
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Q 11.
White light is composed of?
Ans.
Seven colours.
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Q 12.
An image which can't be obtained on a screen is called?
Ans.
Virtual image.
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Q 13.
An image which can be obtained on a screen is called?
Ans.
Real image.
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Q 14.
Any polished or shinning surface acts as a?
Ans.
Mirror.
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Q 15.
How light travels?
Ans.
In a straight line.
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Q 16.
Name the lens who always form a virtual image?
Ans.
Concave lens.
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Q 17.
Image formed by a concave mirror?
Ans.
Large, virtual and erect.
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Q 18.
Which lens is used as a magnifying glass?
Ans.
Convex lens.
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Q 19.
Name the lens which is used to form image of objects spread over a large area?
Ans.
Convex lens.
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Q 20.
Name the mirror which can form a real image?
Ans.
Concave mirror.
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Q 21.
A virtual image larger than the object can be produced by?
Ans.
Concave mirror.
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Q 22.
Which mirror is used by the Dentist?
Ans.
Concave mirror.
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