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Basic Concepts of Physics
Which of the following prisms would be suitable for use in a periscope?
An isosceles right angled prism
An equilateral prism
An isosceles prism
None of these
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Basic Concepts of Physics
Ponds looks shallow because of
Reflection
Refraction
Diffusion
Dispersion
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Basic Concepts of Physics
The energy of characteristic X-rays depends upon the
Voltage applied
Type of target
Temperature
None of these
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Basic Concepts of Physics
Which suffers minimum deviation when white light undergoes dispersion?
Green
Red
Violet
Yellow
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Basic Concepts of Physics
A red tomato appears to be which under blue light?
Black
Red
Blue
Purple
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Basic Concepts of Physics
What is the range of frequencies in which AM radio operates?
88 to 108 MHz
215 to 220 MHz
54 to 88 MHz
550 to 1700 KHz
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Basic Concepts of Physics
If the stars are moving away from the Earth show a
Red shift
Blue shift
Green shift
None of these
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Basic Concepts of Physics
Balmer series of hydrogen spectrum were identified by J.J. Balmer in
1882
1888
1885
1896
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Basic Concepts of Physics
When the source is moving towards the observer at rest the apparent frequency will
Increased
Decreased
Both of above
None of these
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Basic Concepts of Physics
The length of an Earth day is determined by the time required for approximately one
Earth rotation
Earth revolution
Sun rotation
Sun revolution
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