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A biconvex lens has a radius of curvatur...

A biconvex lens has a radius of curvature of magnitude `20cm`. Which one of the following options describes best the image formed of an object of height `2cm` place `30 cm` from the lens ?

A

Virtual, upright, height = 0.5 cm

B

Real, inverted, height = 4 cm

C

Real, inverted, heigh = 1

D

Virtual, upright, height = 1

Text Solution

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The correct Answer is:
B
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MOTION-RAY OPTICS-Exercise-3
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  2. A thin prism of angle 15^(@) made of glass of refractive index mu(1)=1...

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  3. A biconvex lens has a radius of curvature of magnitude 20cm. Which one...

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  4. A rod of length 30 cm lies along the principal axis of a concave mirro...

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  5. A thin convex lens of refractive index 1.5cm has 20cm focal length in ...

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  6. A thin convex lens of refractive index 1.5cm has 20cm focal length in ...

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  7. In a convex lens of focal length F, the minimum distance between an ob...

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  8. The graph between the image distance (v ) and object distance (u) from...

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  9. A hollow prism is filled with water and placed in air. It will deviate...

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  10. The angle of a prism is A . One of its refracting surfaces is silvered...

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  11. If the focal length of the objective lens is increased then

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  12. The refracting angle of a prism is A, and refractive index of the mate...

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  13. Two identical thin planoconvex glass lenses (refractive index 1.5) eac...

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  14. In an astronomical telescope in normal adjustment a straight black lin...

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  15. A lens has one concave surface of R(1) = 2 m and convex surface with R...

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  16. A compound microscope having f(0) = 7 mm, f(e) = 20 mm and distance be...

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  17. For and EMWave . E= E(0) sin 12 xx 10^(6) [X -2 xx 10^(8) t ] (N...

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  18. The angle of incidence for a ray of light at a refracting surface of a...

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  19. The ratio of resolving powers of an optical microscope for two wavelen...

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  20. A beam of light from a source L is incident normally on a plane mirror...

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