Electrons in the atom are held to the nucleus by
Options
(a) Coulomb’s forces (b) nuclear forces (c) van der waal’s forces (d) gravitational forces
Correct Answer:
Coulomb’s forces
Explanation:
No explanation available. […]
Which dimensions will be the same as that of time?
Options
(a) LC (b) R/L (c) L/R (d) C/L
Correct Answer:
L/R
Explanation:
No explanation available. Be the first to write the explanation […]
Moment of inertia, along the diameter of a ring is
Options
(a) 3MR² / 2 (b) MR² / 2 (c) MR² (d) 2MR²
Correct Answer:
MR² / 2
Explanation:
No explanation available. Be […]
The angular velocity of second’s hand of a watch is
Options
(a) 0.053 rad/s (b) 0.210 rad/s (c) 0.105 rad/s (d) 0.42 rad/s
Correct Answer:
0.105 rad/s
Explanation:
No explanation available. Be the […]
Mass of the nucleons together in a heavy nucleus is
Options
(a) greater than mass of nucleus (b) equal to mass of nucleus (c) less than mass of nucleus (d) any of these
The dimensional formula for Boltzmann’s constant is
Options
(a) ML²T⁻²θ⁻¹ (b) ML²T⁻² (c) ML⁰T⁻²θ⁻¹ (d) ML⁻²T⁻¹θ⁻¹
Correct Answer:
ML²T⁻²θ⁻¹
Explanation:
The Boltzmann constant has the dimension is. energy/temperature.
The same as entropy.
so, the […]
Under constant pressure, graph between P and 1/V is a
Options
(a) parabola (b) hyperbola (c) straight line (d) circle
Correct Answer:
straight line
Explanation:
No explanation available. Be the first to write […]
Alternating current cannot be measured by D.C Ammeter because
Options
(a) A.C cannot pass through D.C Ammeter (b) A.C changes direction (c) Average value of current for complete cycle is zero (d) D.C […]
Rutherford’s ∝ particle experiment showed that the atoms have
Options
(a) proton (b) nucleus (c) neutron (d) electron
Correct Answer:
nucleus
Explanation:
No explanation available. Be the first to write the explanation for […]
In an A.C circuit of capacitance the current from potential is
Options
(a) in same phase (b) in opposite phase (c) backward (d) forward
Correct Answer:
forward
Explanation:
No explanation available. Be the […]
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