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A converging lens is used to form an ima...

A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen

A

half of the image will disappear

B

complete image will be formed

C

intensity of the image will increases

D

intensity of the image will decreases

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The correct Answer is:
B, D
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DC PANDEY-RAY OPTICS-B. More than one option is correct
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  6. Refractive index of an equilateral prism is sqrt(2).

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  7. Write laws of refraction. Explain the same with the help of ray diagra...

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  8. A ray of light of wavelength u(0) and frequency v(0) enters a glass sl...

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  9. There are three optical media 1,2 and 3 with the refractive indices mu...

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  12. A convex lens made of glass (mu(g)=3//2) has focal length f in air. Th...

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  13. A converging lens is used to form an image on a screen. When the upper...

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  14. A ray of light travelling in a transparent medium falls on a surface s...

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  15. A horizontal ray of light passes through a prism whose apex angle is 4...

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  16. The image (of a real object) formed by a concave mirror is twice the s...

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  17. Two refracting media are separated by a spherical interface as shown i...

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  19. A plane mirror placed at the origin has hat(i) as the normal vector to...

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