Welcome to your Assertion and Reason -physics class 10
Assertion(A) : Concave mirrors are used as make-up mirrors.
Assertion(A): Hypermetropia is the defect of the eye in which only farther objects are seen.
Assertion (A) : When the resistances are connected between the same two points, they are said
Assertion(A) : When the object moves with a velocity 2 m/s, its image in the plane mirror moves with a velocity of 4 m/s.
Assertion(A): The Sun appears flattened at sunrise and sunset.
Assertion(A) : A ray of light travelling from a rarer medium to a denser medium slows down and bends away from the normal. When it travels from a denser medium to a rarer medium, it speeds up and bends towards the normal.
Assertion(A): A normal human eye can clearly see all the objects beyond certain minimum distance.
Assertion(A) : The strength of the magnetic field produced at the centre of a current carrying circular coil increases on increasing the current flowing through the coil.
Assertion (A) : Alloys are commonly used in electrical heating devices, like electrical iron,
Assertion(A): The magnitude of the magnetic field at a point on the axis of a current carrying solenoid is inversely proportional to the current flowing through the solenoid.
Assertion(A): A compass needle is placed near a current carrying wire. The deflection of the compass needle decreases when the magnitude of an electric current in the wire is increased.
Assertion(A) : The strength of the magnetic field produced at the centre of a current carrying circular coil increases on increasing the radius of the circular coil.
Assertion (A) : Longer wires have greater resistance and the smaller wires have lesser resistance.
Assertion(A) : The centre of curvature is not a part of the mirror. It lies outside its reflecting surface.
Assertion(A): On changing the direction of flow of current through a straight conductor, the direction of a magnetic field around the conductor is reversed.
Assertion(A) : The phenomenon of scattering of light by the colloidal particles gives rise to Tyndall effect.
Assertion (A) : If a graph is plotted between the potential difference and the current flowing,
Assertion(A) : A rainbow is sometimes seen in the sky in rainy season only when observer’s back is towards the Sun.
Assertion (A) : A cell is a device which converts chemical energy into electrical energy.
Assertion(A) : The emergent ray is parallel to the direction of the incident ray.
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