MCQ
The dimensions of linear charge density is:
- A[L T A].
- B[L-1 T A].
- C[L-1 T-1 A-1].
- DNone.
✓
Answer
- [L-1 T A].
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which logic gate is represented by the following combination of logic gates
|
(a) OR |
(b) NAND |
(c) AND |
(d) NOR |
A railway compartment is lit up by thirteen lamps each taking 2.1 amp at 15 volts. The heat generated per second in each lamp will be
|
(a) 4.35 cal |
(b) 5.73 cal |
(c) 7.5 cal |
(d) 2.5 cal |
The equation of a light wave is written as $\text{y}=\text{A}\ \sin(\kappa\text{x}-\omega\text{t}).$ Here, y represents:
→- Displacement of either particles.
- Pressure in the medium.
- Density of the medium.
- Electric field.
A current passes through a resistor. Let K1 and K2 represent the average kinetic energy of the conduction electrons and the metal ions, respectively:
Assertion : We can measure the potential barrier of a PN junction by putting a sensitive voltmeter across its terminals.
Reason : The current through the PN junction is not same in forward and reversed bias.
|
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
|
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
|
(c) If assertion is true but reason is false. |
|
(d) If assertion is false but reason is true. |
The distance between charges 5 × 
and -2.7 
is 0.2 m. The distance at which a third charge should be placed in order that it will not experience any force along the line joining the two charges is
|
(a) 0.44 m |
(b) 0.65 m |
(c) 0.556 m |
(d) 0.350 m |
A radioactive element 
decay into 
. The number of β - particles emitted are
|
(a) 4 |
(b) 6 |
(c) 2 |
(d) 1 |
An electron in the n = 1 orbit of hydrogen atom is bound by 13.6 eV. If a hydrogen atom is in the n = 3 state, how much energy is required to ionize it
|
(a) 13.6 eV |
(b) 4.53 eV |
(c) 3.4 eV |
(d) 1.51 eV |
What will be the ratio of de-Broglie wavelengths of proton and α - particle of same energy
|
(a) 2 : 1 |
(b) 1 : 2 |
(c) 4 : 1 |
(d) 1 : 4 |
A rectangular coil ABCD is rotated anticlockwise with a uniform angular velocity about the axis shown in diagram below. The axis of rotation of the coil as well as the magnetic field B are horizontal. The induced e.m.f. in the coil would be maximum when
| (a) The plane of the coil is horizontal |
|
(b) The plane of the coil makes an angle of 45° with the magnetic field |
|
(c) The plane of the coil is at right angles to the magnetic field |
|
(d) The plane of the coil makes an angle of 30° with the magnetic field |