- AFlint glass prism
- BDirect vision prism
- CNicol prism
- DQuartz prism
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
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 |

When a slow neutron goes sufficiently close to a
nucleus, then the process that takes place is
|
(a) Fission of |
(b) Fusion of neutron |
(c) Fusion of |
(d) First (a) then(b) |
$\text{n}\propto\text{size of u}$
$\text{n}\propto\text{u}^2$
$\text{n}\propto\sqrt{\text{u}}$
$\text{n}\propto\frac{1}{\text{u}}$
A person cannot see objects clearly beyond 2.0 m. The power of lens required to correct his vision will be
|
(a) + 2.0 D |
(b) – 1.0 D |
(c) + 1.0 D |
(d) – 0.5 D |
Energy of electrons can be increased by allowing them
|
(a) To fall through electric potential |
(b) To move in high magnetic field |
|
(c) To fall from great heights |
(d) To pass through lead blocks |