A virtual image larger than the object can be obtained by
|
(a) Concave mirror |
(b) Convex mirror |
(c) Plane mirror |
(d) Concave lens |
A virtual image larger than the object can be obtained by
|
(a) Concave mirror |
(b) Convex mirror |
(c) Plane mirror |
(d) Concave lens |
(a) Concave mirror
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Assertion : According to classical theory, the proposed path of an electron in Rutherford atom model will be parabolic.
Reason : According to electromagnetic theory an accelerated particle continuously emits radiation.
|
(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. |
Magnetic lines of force due to a bar magnet do not intersect because
|
(a) A point always has a single net magnetic field |
|
(b) The lines have similar charges and so repel each other |
|
(c) The lines always diverge from a single point |
|
(d) The lines need magnetic lenses to be made to intersect |
Which of the following statement is not the true
|
(a) While taking reading of tangent galvanometer, the plane of the coil must be set at right angles to the earth’s magnetic meridian |
|
(b) A short magnet is used in a tangent galvanometer since a long magnet would be heavy and may not easily move |
|
(c) Measurements with the tangent galvanometer will be more accurate when the deflection is around 45o |
|
(d) A tangent galvanometer can not be used in the polar region |
Assertion : If a charged particle is moving on a circular path in a perpendicular magnetic field, the momentum of the particle is not changing,.
Reason : Velocity of the particle in not changing in the magnetic field.
|
(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. |
