(C) lens is an optical device that refracts light and allows it to pass through it. For a material to be used as a lens,it must be transparent so that

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(C) lens is an optical device that refracts light and allows it to pass through it. For a material to be used as a lens,it must be transparent so that light can travel through it. Water,glass,and plastic are transparent materials and can be used to make lenses. Clay is an opaque material,meaning light cannot pass through it. Therefore,clay cannot be used to make a lens.

Class 10 Science Light – Reflection and Refraction Textbook - Light – Reflection and Refraction

Easy

Which one of the following materials cannot be used to make a lens?

A
Water
B
Glass
C
Clay
D
Plastic

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Chapter

Light – Reflection and Refraction

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Textbook - Light – Reflection and Refraction

You are given kerosene,turpentine,and water. In which of these does the light travel fastest? Use the information given in the table below.
Material medium Refractive index
Water $1.33$
Kerosene $1.44$
Turpentine oil $1.47$

Medium

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An object is placed at a distance of $10\, cm$ from a convex mirror of focal length $15\, cm$. Find the position and nature of the image.

Difficult

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Find out,from the table,the medium having the highest optical density. Also,find the medium with the lowest optical density.
Material medium Refractive index
Air $1.0003$
Ice $1.31$
Water $1.33$
Alcohol $1.36$
Kerosene $1.44$
Fused quartz $1.46$
Turpentine oil $1.47$
Benzene $1.50$
Crown glass $1.52$
Canada Balsam $1.53$
Rock salt $1.54$
Carbon disulphide $1.63$
Dense flint glass $1.65$
Ruby $1.71$
Sapphire $1.77$
Diamond $2.42$

Medium

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Why do we prefer a convex mirror as a rear-view mirror in vehicles?

Medium

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Find the focal length of a lens of power $-2.0 \, D$. What type of lens is this?

Easy

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Material medium	Refractive index
Water	$1.33$
Kerosene	$1.44$
Turpentine oil	$1.47$

Material medium	Refractive index
Air	$1.0003$
Ice	$1.31$
Water	$1.33$
Alcohol	$1.36$
Kerosene	$1.44$
Fused quartz	$1.46$
Turpentine oil	$1.47$
Benzene	$1.50$
Crown glass	$1.52$
Canada Balsam	$1.53$
Rock salt	$1.54$
Carbon disulphide	$1.63$
Dense flint glass	$1.65$
Ruby	$1.71$
Sapphire	$1.77$
Diamond	$2.42$

Which one of the following materials cannot be used to make a lens?

Similar Questions

You are given kerosene,turpentine,and water. In which of these does the light travel fastest? Use the information given in the table below.Material mediumRefractive indexWater$1.33$Kerosene$1.44$Turpentine oil$1.47$

An object is placed at a distance of $10\, cm$ from a convex mirror of focal length $15\, cm$. Find the position and nature of the image.

Why do we prefer a convex mirror as a rear-view mirror in vehicles?

Find the focal length of a lens of power $-2.0 \, D$. What type of lens is this?

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You are given kerosene,turpentine,and water. In which of these does the light travel fastest? Use the information given in the table below.
Material medium Refractive index
Water $1.33$
Kerosene $1.44$
Turpentine oil $1.47$