Home
Class 11
PHYSICS
A diverging lens may NOT have...

A diverging lens may NOT have ______

A

positive focal length

B

negative focal length

C

one plane length

D

one convex surface

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    TARGET PUBLICATION|Exercise CRITICALTHINKING|34 Videos

  • RAY OPTICS

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|60 Videos

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise EVALUATION TEST|17 Videos

  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|12 Videos

Similar Questions

Explore conceptually related problems

A diverging lens has a focal length of 0.10 m. The power of this lens will be:

A lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is (refractive index of water =1.33 )

A lense behaves as a converging lens is air and diverging lens in water. The refractive index of the lens material is -

Convergent beam of light is passed through a diverging lens. Light rays after passing lens

Name the defect of vision which can be corrected by a diverging lens. Show clearly by a ray diagram how the lens corrects the defect.

Assertion A diverging lens (in air) cannot be made more diverging whatever be the medium we choose completely immerse the lens. Reason The minimum refractive index of any medium is 1.

The following figure from shows version of a zoom.The converging lens has a focal length f_(1) and the diverging lens has focal length f_(2)=-|f_(2)| .the two lens are separated by a variable distance d that it is always less than f_(1), also the magnitude of the focal length of the diverging lens satisfies the inequality |f_(2)|gt(f_(1)-d). if the rays that emerge form the diverging lens and reach the final image point are extended backward to the left of the diverging lens,they will eventually expand to the original radius r_(o) at the same point. Q .To determine the effective focal length of the combination lens consider a bundle of parallel rays of radius r_(0) entering the emerging lens. To the right of the diverging lens the final image I 'formed at a distance S_(2)' given by

The following figure from shows version of a zoom.The converging lens has a focal length f_(1) and the diverging lens has focal length f_(2)=-|f_(2)| .the two lens are separated by a variable distance d that it is always less than f_(1), also the magnitude of the focal length of the diverging lens satisfies the inequality |f_(2)|gt(f_(1)-d). if the rays that emerge form the diverging lens and reach the final image point are extended backward to the left of the diverging lens,they will eventually expand to the original radius r_(o) at the same point. Q .To determine the effective focal length of the combination lens consider a bundle of parallel rays of radius r_(0) entering the emerging lens. AT the point where ray enters the diverging lens ,the radius of the ray bundle decreases to

When an object is placed 60 cm in front of a diverging lens, a virtual image is formed 20 cm from the lens. The lens is made of a refractive index mu=1.65 and its two spherical surfaces have the same radius of curvature. What is the value of this radius?