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The diagram below shows a point source P...

The diagram below shows a point source P inside a water container. Four rays A, B, C, D starting from the source P are shown up to the water surface.

Show in the diagram the path of these rays after striking the water surface. The critical angle for water air surface is `48^(@)`.

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Figure shows a point source P inside a water container. Three rays A,B and C starting from the source P are shown up to the water surface. (a) show in the diagram the path of these rays after striking the water surface. The critical angle for water-air surface is 48^(@) . (b) Name the phenomenon which the rays A, B and C exhibit. .

The diagram below shows a point source P inside a water container. Four rays A, B, C, D starting from the source P are shown up to the water surface. Name the phenomenon which the rays B and D exhibit.

A ray of light travels from water to air as shown in the diagram given below: Copy the diagram and complete the path of the ray. Given the critical angle for water is 48^(@) .

State the approximate value of the critical angle for (a) glass-air surface (b) water-air surface.

Complete the ray diagram shown below, given that the critical angle. for air-glass pair is i_(c)=42^(@)

The diagram shows a point object P in front of a plane mirror MM^1 . Complete the diagram by taking two rays from the point P to show the formation of its image.

A ray of monochromatic light enters a liquid from air as shown in the diagram given below: Copy the diagram and show in the diagram the path of the ray of light after it strikes the mirror and reenters the medium of air.

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The diagram below shows the position of two divers A and B in river water at the depth of h_1 and h_2 respectively from the water surface. Which of the two divers (A or B) will experience more pressure by the water?

A ray of green light enters a liquid from air, as shown in figure. Angle 1 is 45^(@) and angle 2 is 30^(@) . (a) Find the refractive index of the liquid (b) Show in the diagram the path of the ray after it strikes the mirror and re-enters in air. mark in the diagram the angles wherever necessary. (c) Redraw the diagram if plane mirror becomes normal to the refracted ray inside the liquid. state the principle used.

ICSE-SAMPLE QUESTION PAPER 4 -SECTION B
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  4. A ray of light travels from water to air as shown in the diagram given...

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  11. The diagram below shows a point source P inside a water container. Fou...

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  12. The diagram below shows a point source P inside a water container. Fou...

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  13. Among alpha, beta and gamma-rays, which is the most penetrating?

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  14. Arrange alpha , beta and gamma rays in ascending order with respect t...

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  15. Arrange the alpha, beta and gamma radiation in ascending order of thei...

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  16. State two factors on which the speed of a wave travelling in a medium ...

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  17. Give one application of echo.

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  19. A nucleus of stable phosphorus has 15 protons and 16 neutrons. (a) W...

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