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Physics Solved MCQs with Answers
| Post Topic | Solved MCQs |
| Book Code | Physics |
Physics MCQs with Answers Online Reading
1: The antiparticle of an electron is:
Positron
2: According to the first law of thermodynamics, applied to a gas, the increase in the internal energy during any process Equals the heat input plus…
the work done on the gas
3: The approach to personality stresses that people possess a basic goodness, and have a natural tendency to grow to higher levels of functioning.
humanistic
4: In a photoelectric experiment at a frequency above the cut-off, the stopping potential is proportional to The energy of the most energetic electron after it is ejected….confirm from the net
There is a temperature at which the
5: reading on the Kelvin scale is numerical:
Is Not Equal to that on the Celsius scale
6: The special theory of relativity is applicable to the object moving with maximum velocity equal to:
Speed of light
6: According to the special theory of Relativity
All forms of energy have mass-like properties
7: In constructing a thermometer it is necessary to use a substance that:
Undergoes some change when heated or cooled
8: A particle with rest mass m moves with a speed of 0.6c. its kinetic energy is:
0.25 mc2
9: J.J Thompson’s measurement of e/m for electrons provides evidence of the:
Particle nature of matter
10: Polarization means………
Polarization refers to the orientation of the oscillations of light waves, not altering their wavelength
11: The emission of electrons by metals on heating is called
Thermionic emission
12: The specific heat of a substance is: the amount of heat energy per unit mass to raise the temperature of the substance by
1?C
13: An erect object is in front of a convex mirror a distance greater than the focal length. The image is:
Virtual, erect, and smaller than the object
14: A student rubs a rod held in his hand. Which action causes the rod to gain a large electrostatic charge?
Rubbing a polythene rod with a woolen duster
15: Two parallel straight wires carrying current in the same direction
will exert magnetic forces that cause them to attract each other
16: The process for which entropy remains constant is:
A reversible process
17: The appearance of colors in thin film is due to:
interference
18: Greenhouse gases absorb radiation
Infrared.
19: The theoretical upper limit for the frequency of electromagnetic waves is:
the Planck frequency, determined by Planck’s constant
20: Heat has the same units as:
Heat is measured in units of energy, typically joules (J), while work is also measured in units of energy.
21: The capacitance of a capacitor in a vacuum is given by
A eo/d