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In torches, search lights and headlights...

In torches, search lights and headlights of vehicles the bulb is placed

A

between the pole and the focus of the reflector

B

very near to the focus of the reflector

C

between the focus and centre of curvature of the reflector

D

at the centre of curvature of the reflector

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Verified by Experts

The correct Answer is:
B
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ZEN PUBLICATION-LIGHT - REFLECTION AND REFRACTION-ZEN ADDITIONAL QUESTIONS SECTION (MULTIPLE - CHOICE QUESTIONS)
  1. Which of the following can make parallel beam of light when light from...

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  2. A full length image of a distant tall building can definitely be seen ...

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  3. In torches, search lights and headlights of vehicles the bulb is place...

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  4. The laws of reflection hold good for

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  5. A child is standing in front of a magic mirror. She finds the image of...

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  6. The speed of light in vacuum is

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  7. Virtual images formed by a convex mirror are always ………..

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  8. Which of these can be used to obtain a real image having the same size...

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  9. The distant object method can be used to find the focal length of whic...

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  10. A light ray is incident on a concave mirror which passes through the c...

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  11. When a biconvex lens made of glass is immersed in a liquid which is op...

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  12. The power of a spherical lens is given by :

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  13. When a concave lens made of glass is kept in a liquid which has greate...

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  14. An object is kept 15 cm in front of a concave lens of focal length 20 ...

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  15. The nature and size of an object placed focus F(1) of a convex lens is...

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  16. The power of a concave lens of focal length 50 cm is :

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  17. u, v, f and r represents the object distance, image distance, focal le...

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  18. When light goes from one medium to another, the characteristics that r...

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  19. Reflective index of glass with respect to air is 3/2. What is the refr...

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  20. When a light ray travels from one medium to another with the same refr...

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