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The image for the converging beam after ...

The image for the converging beam after refraction through the curved surface is formed at

A

`x=40 cm`

B

`x=(40)/(3)cm`

C

`x=-(40)/(3)cm`

D

`x=(180)/(7) cm`

Text Solution

Verified by Experts

The correct Answer is:
D
`(1)/(v)-(3)/(2xx30)=(1-(3)/(2))/(+20) (1)/(v)=-(1)/(40)+(1)/(20)=+(1)/(40) v=40 cm` .
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RESONANCE ENGLISH-GEOMATRICAL OPTICS -Exercise-1
  1. A prism having an apex angle 4^(@) and refraction index 1.5 is located...

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  2. There is a small black dot at the centre C of a solid glass sphere of ...

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  3. The image for the converging beam after refraction through the curved ...

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  4. A plano-concave lens is placed on a paper on which a flower is drawn. ...

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  5. A beam of diameter 'd' is incident on a glass hemisphere as shown. If ...

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  6. A convexo-concave convergent lens is made of glass of refractive index...

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  7. Two symmetric double convex lenses A and B have same focal length but ...

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  8. When a lens of power P (in air) made of material of refractive index m...

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  9. A lens behaves as a converging lens in air and a diverging lens in wat...

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  10. The sun subtends an angle of (1//2)^(@) on earth. The image of sun is ...

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  11. A lens having focal length f and aperture of diameter d forms an image...

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  12. A thin symmetrical double convex lens of power P is cut into three par...

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  13. In the figure shown, there are two convex lenses L(1) and L(2) having ...

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  14. An object is placed at a distance u from a concave mirror and its real...

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  15. A real inverted image in a concave mirror represented by graph (u, v, ...

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  16. What should be the value of distance d so that final image is formed o...

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  17. An object is kept on the principal axis of a concave mirror of focal l...

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  18. A biconvex lens is used to project a slide on screen. The slide is 2 c...

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  19. The minimum distance between a real object and its real image formed b...

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  20. Two planoconvex lenses each of the focal length of10cm&refractive inde...

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