MEDIUM
12th Bihar Board
IMPORTANT
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The image formed by objective lens of a Compound Microscope is:
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Important Questions on Ray Optics and Optical Instruments
MEDIUM
12th Bihar Board
IMPORTANT
A convex lens is dipped in a liquid, whose refractive index is equal to refractive index of material of lens. Then its focal length will
HARD
12th Bihar Board
IMPORTANT
Critical angle for light moving from medium I to medium II is . The speed of light in medium I is v. Then speed in medium II is:
HARD
12th Bihar Board
IMPORTANT
A magnifying glass is to be used at the fixed object distance of 1 inch. If it is to produce an erect image 5 times magnified, its focal length should be:
HARD
12th Bihar Board
IMPORTANT
To remove hyper metropia lens used is:
HARD
12th Bihar Board
IMPORTANT
Which of the following phenomenon takes place when a monochromatic light is incident on a prism?
HARD
12th Bihar Board
IMPORTANT
Optical fiber communication is based on which of the following phenomenon:
MEDIUM
12th Bihar Board
IMPORTANT
The resolving power of human eye(in minute) is:
HARD
12th Bihar Board
IMPORTANT
A fish at a depth of and it can see only through a circular section of water surface. What will be the radii of this circular surface? The refractive index of water with respect to air is . Sketch the diagram also.
