EASY
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It is desired to photograph the image of an object placed at a distance of 4m from the plane mirror. The camera which is at a distance of 6m from the mirror should be focused for a distance of

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Important Questions on Light

EASY
Science>Physics>Light>Reflection of Light

Which one of the following is not a property of solution?

EASY
Science>Physics>Light>Reflection of Light
Which of the following is employed to clearly view objects which cannot be seen directly due to obstruction? 
MEDIUM
Science>Physics>Light>Reflection of Light
The phenomenon of deviation of light rays from their original path, when they pass from one medium to another, is called _____.
MEDIUM
Science>Physics>Light>Reflection of Light
The Tyndall Effect is due to
EASY
Science>Physics>Light>Reflection of Light
If an object is at 10 cm, away from the concave for which radius of curvature is 5 cm. Find out the value of magnification of the object:
MEDIUM
Science>Physics>Light>Reflection of Light
The phenomenon of physics when, in polar regions like Alaska and Northern Canada, a splendid
display of colours is seen in the sky is called a/an:
MEDIUM
Science>Physics>Light>Reflection of Light
The power of a lens is –2.0 D. Here 'D' stands for:
EASY
Science>Physics>Light>Reflection of Light
Twinkling of stars is mainly due to which phenomena?
MEDIUM
Science>Physics>Light>Reflection of Light
Dentist use Concave mirror because it gives _____ and _____ Image.
EASY
Science>Physics>Light>Reflection of Light
If the reflecting surface of a spherical minor is convex, then it is a _____ mirror.
EASY
Science>Physics>Light>Reflection of Light
The sky appears blue due to _____.
EASY
Science>Physics>Light>Reflection of Light
Where should an object be placed in front of a convex lens to obtain a real image of the same size of the object?
MEDIUM
Science>Physics>Light>Reflection of Light
The spectrum of light was first explained by _____
EASY
Science>Physics>Light>Reflection of Light
The power of a lens is measured in _____.
EASY
Science>Physics>Light>Reflection of Light
What will be the size of image formed by a concave mirror when an object placed between Pole and Focus?
EASY
Science>Physics>Light>Reflection of Light

Find the value of ∠i, ∠r in the diagram.

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MEDIUM
Science>Physics>Light>Reflection of Light
The blackboard seems black because it _____.
EASY
Science>Physics>Light>Reflection of Light
Which mirror has a very wide field of view?
EASY
Science>Physics>Light>Reflection of Light
After a shower of rain, a rainbow is seen:
EASY
Science>Physics>Light>Reflection of Light

If the focal length of a mirror is +15, then it is______: