In the Young’s modulus experiment, if length of wire and radius both are doubled, then the value of Y will becomes
Options
(a) Two times (b) Four times (c) Remains the same (d) Half
According to Hook’s law, force is proportional to
Options
(a) 1/r (b) 1/r² (c) r (d) r²
Correct Answer:
r
Explanation:
No explanation available. Be the first to write the explanation for this question […]
At absolute temperature, the kinetic energy of the molecules
Options
(a) Becomes zero (b) Becomes maximum (c) Becomes minimum (d) Remains constant
Correct Answer:
Becomes zero
Explanation:
At absolute zero temperature, molecular motion […]
In the relation n = (PV/RT), n stands for
Options
(a) Number of molecules (b) Atomic number (c) Mass number (d) Number of moles
Correct Answer:
Number of moles
Explanation:
n = Number […]
Which of the following phenomena does not show the wavenature of light?
Options
(a) Diffraction (b) Interference (c) Refraction (d) Photoelectric effect
Correct Answer:
Photoelectric effect
Explanation:
No explanation available. Be the first […]
Temperature is a measurement of coldness or hotness of an object. This definition is based on
Options
(a) Zeroth law of thermodynamics (b) First law of thermodynamics (c) Second law of thermodynamics (d) […]
On adjusting the P-N junction diode in forward bias,
Options
(a) Depletion layer increases (b) Resistance increases (c) Both decreases (d) none of these
Correct Answer:
Both decreases
Explanation:
In forward bias arrangement of […]
For non-conductors, the energy gap is
Options
(a) 6 eV (b) 1.1 eV (c) 0.8 eV (d) 0.3 eV
Correct Answer:
6 eV
Explanation:
No explanation available. Be the first to write the […]
In a primary coil 5 A current is flowing on 220 V. In the secondary coil 2200 V are produced. Ratio of number of turns in secondary coil and primary coil will be
Options […]
When the wave of hydrogen atom comes from infinity into the first orbit, the value of wave number is
Options
(a) 109700 cm⁻¹ (b) 1097 cm⁻¹ (c) 109 cm⁻¹ (d) None of these
Correct […]
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