- AA force and a torque.
- BA force but not a torque.
- CA torque but no force.
- DNeither a force nor a torque.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
The following four wires are made of the same material and are at the same temperature. Which one of them has highest electrical resistance
|
(a) Length = 50 cm, diameter = 0.5 mm |
(b) Length = 100 cm, diameter = 1 mm |
|
(c) Length = 200 cm, diameter = 2 mm |
(d) Length = 300 cm, diameter = 3 mm |
Four capacitors are connected as shown in the equivalent capacitance between the points P and Q is
|
(a) 4 μF |
(b) |
(c) |
(d) |
At a certain place a magnet makes 30 oscillations per minute. At another place where the magnetic field is double, its time period will be
| (a) 4 sec | (b) 2 sec |
(c) |
(d) |
The ratio of the refractive index of red light to blue light in air is
|
(a) Less than unity |
|
(b) Equal to unity |
|
(c) Greater than unity |
|
(d) Less as well as greater than unity depending upon the experimental arrangement |
Energy of 1g uranium is equal to
|
(a) 9.0 |
(b) 9.0 |
(c) 3.0 |
(d) 3.0 |