Which one is in forward bias
|
(a)
|
(b)
|
(c)
|
(d) None of these |
Which one is in forward bias
|
(a)
|
(b)
|
(c)
|
(d) None of these |
(b)

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Assertion : The tangent galvanometer can be made more sensitive by increasing the number of turns of its coil.
Reason : Current through galvanometer is proportional to the number of turns of coil.
|
(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 combination of two thin lenses of the same material with focal lengths
and
, arranged on a common axis minimizes chromatic aberration, if the distance between them is
|
(a) |
(b) |
(c) ( |
(d) |
Which of the following gives the value of magnetic field according to, Biot-Savart’s law’
|
(a) |
(b) |
(c) |
(d) |
A potentiometer consists of a wire of length 4 m and resistance 10 W. It is connected to cell of emf 2 V. The potential difference per unit length of the wire will be
|
(a) 0.5 V/m |
(b) 10 V/m |
(c) 2 V/m |
(d) 5 V/m |
The time required to pass the light through a glass slab of 2 mm thick is (
)
|
(a) |
(b) |
(c) |
(d) |
The colour of a star is an indication of its
|
(a) Weight |
(b) Distance |
(c) Surface temperature |
(d) Size |