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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

Water is optically denser than glass. - Physics

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प्रश्न

Water is optically denser than glass.

विकल्प

  • True

  • False

MCQ
सत्य या असत्य
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उत्तर

False.
Water is optically denser than air.

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अध्याय 5: Light Energy - Objective Questions [पृष्ठ ९८]

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सेलिना Concise Physics [English] Class 8 ICSE
अध्याय 5 Light Energy
Objective Questions | Q 1.01 | पृष्ठ ९८

संबंधित प्रश्न

State whether the following statement is true of false:
A student says that we can see an object because light from our eyes is reflected back by the object.


What are the important differences between looking at a photograph of your face and looking at yourself in a plane mirror?


The boy walks towards the mirror at a speed of 1 m/s. At what speed does his image approach him?


A ray of light travelling in air is incident on a rectangular glass block and emerges out into the air from the opposite face. Draw a labelled ray diagram to show the completer path of this ray of light. Mark the two points where the refraction of light takes place. What can you say about the final direction of ray of light?


Draw suitable diagrams to illustrate how a beam of light incident parallel to the principal axis is reflected by:
(a) a concave mirror, and (b) a convex mirror


We can see the sun even when it is little below the horizon because of ______.


Choose the correct option from given alternative:
A real image is formed by the light rays after reflection or refraction when they:
(A) actually meet or intersect with each other.
(B) actually converge at a point
(C) appear to meet when they are produced in the backward direction.
(D) appear to diverge from a point.
Which of the above statements are correct?


Due to _______ pencil looks bent in water, in the given experiment.


In the above diagram light is travelling through different media. It is noted by a scientist that ∠1= ∠3 = ∠4 but ∠2 < ∠1. Which of the following statement would be correct?


Which is optically denser out of the two medium M1& M2 having the refractive indices = 1.71 and 1.36 respectively?


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