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MCQs

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Conventionally, all the distances p, q, f are measured from _____ of the lens
NETNUST Entry TestPhysicsOptical Instruments
Least distance of distinct vision of an old man possibly becomes:
NETNUST Entry TestPhysicsOptical Instruments
The ratio of the diameters of two convex lenses is ______ the ratio of their focal lengths
NETNUST Entry TestPhysicsOptical Instruments
If the focal length of a convex lens is 5 cm, then to get real and inverted image of the same size as that of object, the object should be placed at:
NETNUST Entry TestPhysicsOptical Instruments
How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper:
NETNUST Entry TestPhysicsOptical Instruments
If the object is situated at focus of a convex lens, then its image is formed at:
NETNUST Entry TestPhysicsOptical Instruments
When the object lies between F and 2F, the image formed by a convex lens is:
NETNUST Entry TestPhysicsOptical Instruments
A convex lens acts as diverging lens when the object is placed:
NETNUST Entry TestPhysicsOptical Instruments
The distance from eye to near point is taken as:
NETNUST Entry TestPhysicsOptical Instruments
With age, least distance of distinct vision:
NETNUST Entry TestPhysicsOptical Instruments
The least distance of distinct vision is:
NETNUST Entry TestPhysicsOptical Instruments
Nuclear fission reactions takes place in controlled conditions by the use of
NETNUST Entry TestPhysicsNuclear Physics
Human body emits which of the following radiation?
NETNUST Entry TestPhysicsNuclear Physics
What is the relation between penetrating power and ionization power
NETNUST Entry TestPhysicsNuclear Physics
There are ______ leptons.
NETNUST Entry TestPhysicsNuclear Physics
Which one of these is used in the treatment of Cancer?
NETNUST Entry TestPhysicsNuclear Physics
What is correct about alpha and X rays?
NETNUST Entry TestPhysicsNuclear Physics
Which of the following radiation detector operates under Reverse Bias?
NETNUST Entry TestPhysicsNuclear Physics
Penetration power of gamma rays as compared to alpha rays is
NETNUST Entry TestPhysicsNuclear Physics
Alpha particle has
NETNUST Entry TestPhysicsNuclear Physics
Energy of fast moving neutron is?
NETNUST Entry TestPhysicsNuclear Physics
In which of the following the p-n junction is used?
NETNUST Entry TestPhysicsNuclear Physics
Disintegration of a radioactive element is
NETNUST Entry TestPhysicsNuclear Physics
In heavy nuclei the number of neutrons are __________ protons
NETNUST Entry TestPhysicsNuclear Physics
Transmutation occurs when which rays are given out?
NETNUST Entry TestPhysicsNuclear Physics
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