- A$\frac{1}{16}$th mass of one oxygen atom
- B$\frac{1}{14}$th mass of one atom of nitrogen
- C$\frac{1}{12}$th mass of one carbon-12 atom
- DNone of above
Explanation:
One a.m.u. is defined as mass of $\frac{1}{12}$th the mass of one carbon-12 atom.
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Electromagnetic waves travel in a medium which has relative permeability 1.3 and relative permittivity 2.14. Then the speed of the electromagnetic wave in the medium will be
|
(a) 13.6 |
(b) 1.8 |
(c) 3.6 |
(d) 1.8 |
The material of fuse wire should have
|
(a) A high specific resistance and high melting point |
|
(b) A low specific resistance and low melting point |
|
(c) A high specific resistance and low melting point |
|
(d) A low specific resistance and a high melting point |
A nucleus of
originally at rest emits a particle with speed v. What will be the recoil speed of the daughter nucleus
| (a) 4v/206 | (b) 4v/214 | (c) v/206 | (d) v/214 |
Consider the circuit given here with the following parameters E.M.F. of the cell = 12 V. Internal resistance of the cell = 2 Ω. Resistance R = 4 Ω
Which one of the following statements in true
|
(a) Rate of energy loss in the source is = 8 W |
|
(b) Rate of energy conversion in the source is 16 W |
|
(c) Power output in is = 8 W |
|
(d) Potential drop across R is = 16 V |
The self inductance of a straight conductor is
|
(a) Zero |
(b) Very large |
(c) Infinity |
(d) Very small |
When a resistance of 2ohm is connected across the terminals of a cell, the current is 0.5 amperes. When the resistance is increased to 5 ohm, the current is 0.25 amperes. The internal resistance of the cell is
|
(a) 0.5 ohm |
(b) 1.0 ohm |
(c) 1.5 ohm |
(d) 2.0 ohm |