Question
Magnetic meridian is a
|
(a) Point |
(b) Horizontal plane |
(c) Vertical plane |
(d) Line along N-S |
✓
Answer
(c) Vertical plane
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
The work function is called:
The resistance and inductance of series circuit are 5
and 20H respectively. At the instant of closing the switch, the current is increasing at the rate 4A - s. The supply voltage is
|
(a) 20 V |
(b) 80 V |
(c) 120 V |
(d) 100 V |
Assertion : At 0 K Germanium is a superconductor.
Reason : At 0 K Germanium offers zero resistance.
|
(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 the assertion and reason both are false. |
A beam consisting of protons and electrons moving at the same speed goes through a thin region in which there is a magnetic field perpendicular to the beam. The protons and the electrons:
- Will go undeviated.
- Will be deviated by the same angle and will not separate.
- Will be deviated by different angles and hence separate.
- Will be deviated by the same angle but will separate.
In order to see diffraction the thickness of the film is
|
(a) 100 Å |
(b) 10,000 Å |
(c) 1 mm |
(d) 1 cm |
The work function for photoelectric effect:
Effective resistance between A and B is
|
(a) 15 W |
(b) 5 W |
(c) |
(d) 20 W |
How much current should be passed through acidified water for 100 s to liberate 0.224 litre of 
|
(a) 22.4 A |
(b) 19.3 A |
(c) 9.65 A |
(d) 1 A |
____ And _____ led to understanding of atomic structures:
- Fresnel diffraction.
- Cathode rays.
- X-rays.
- Electrons.
A coin kept in a container and not visible can be viewed by pouring water into the container. It happens because of the: