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The value of escape speed from the surfa...

The value of escape speed from the surface of earth is

A

real image, 36 cm in air

B

virtual image, 72cm in air

C

virtual image, 72 cm medium

D

real image 36 cm, in air

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The correct Answer is:
A
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AAKASH SERIES-GEOMETRICAL OPTICS-PRACTICE SHEET (ADVANCED) (STRAIGHT OBJECTIVE TYPE QUESTIOS)
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  8. A convex lens of focal length 20cm and another plano convex lens of fo...

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  9. Find the focal length of the lens shown in Fig.

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  11. When an object is placed 40cm from a diverging lens, its virtual image...

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  12. The given lens is broken into four parts rearranged as shown. If the i...

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  13. A thin converging lens is placed between as fixed object and a screen....

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  14. A thin biconvex lens of refractive index 3//2 is placed on a horizonta...

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  15. A convex lens is placed between an object and a screen which are at a ...

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  16. The value of escape speed from the surface of earth is

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  17. Two lenses shown in figure. Are illuminated by a beam of parallel ligh...

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  18. A double convex lens forms a real image of an objectt on a screen whic...

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