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10. Light - Reflection and Refraction
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Q8 of 38 Page 79

Which of the following statements is true?

Since power of a lens is given by the relation:


P = 1/f




So, a convex lens has 4 diopter power having a focal length of 0.25 m.

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6

Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in the Figure10.3. Which of the following could be inside the box?

7

A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as shown in the Figure 10.4. Which of the following could be inside the box?

9

Magnification produced by a rear view mirror fitted in vehicles

10

Rays from Sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?

Questions · 38
10. Light - Reflection and Refraction
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