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Concave lens is used in the peephole of a door.

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Important Questions on Lenses

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments
Explain the working of an astronomical telescope using refraction of light.
EASY
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Give scientific reason:

Simple microscope is used for watch repairs.

EASY
Science>Physics>Lenses>Uses of Lenses and Optical Instruments
Simple microscope is used for watch repairs.
MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments
Which of the following lens would you prefer to use while reading small letters found in a dictionary?
MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments
Which of the following makes use of convex lenses?
MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments
If you are asked to select the lens for the peephole of the front door of your house, which kind of lens will you choose?
EASY
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Convex lenses are used in spectacles for correcting long sight.

EASY
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Concave lenses are used in the correction of myopia.

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Name any two optical instruments which uses convex lens.

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Which lenses are used in the correction of myopia?

EASY
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Concave lenses are used in spectacles for correcting long sight.

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Explain the use of concave lens in the peephole of a door.

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Explain the role of convex lens in simple microscope diagrammatically.

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Explain the role of convex lens in simple microscope.

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Explain the uses of convex lens in compound microscope.

EASY
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

_____ lenses used in reflecting telescopes.

EASY
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Convex lenses are used in reflecting telescopes.

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Explain the uses of convex lenses in reflecting telescopes.

MEDIUM
Science>Physics>Lenses>Uses of Lenses and Optical Instruments

Explain the role of convex lenses used in reflecting telescopes diagrammatically.