CBSE Class X – Science Physics Exam (Full Syllabus)

Magnetic effect of current was identified by:

Relative strength of magnetic field at a point in the space adjoining the magnet is shown by the:

A soft iron bar is introduced inside the current carrying solenoid. The magnetic field inside the solenoid:

Which of the following component influence the strength of force experience by a current carrying conduct in a uniform magnetic field?

A magnet is moved towards a coil (i) quickly (ii) slowly. The induced potential difference:

The current which is created due to the relative motion of coil or magnet

Example of permanent magnet is

An electron moves with a speed v along positive direction of the x-axis. If a magnetic feld B acts along the positive y-direction, then the force on the electron will act along

The values of mA and µA are:

At the time of short circuit, the electric current in the circuit:

Electrical resistivity of a given metallic wire depends upon:

Ohm’s law express that:

S.I unit of resistivity

Joule’s law of heating implies that heat produced in a resistor is directly proportional to the square of

The equivalent resistance of a series combination of two resistances is X Ohm. If the resistance are of 10 Ohm and 40 Ohm respectively, the value of X will be:

An ideal ammeter is one which has

The device used for detecting and indicating an electric current.

The bluish colour of water in deep sea is due to:

In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray

Milk is a colloid that contains globules of fat and protein. When a beam of light is directed at a glass of milk the light is scattered. That is a great example

When a fine beam of sunlight enters a smoke filled room, smoke particles become visible due to scattering of light by these particles

The density of the atmosphere, as we know goes on decreasing as the distance above the sea level increases,this phenomeneon is called

The defect the eye cannot focus objects both horizontally and vertically at the same time

The colour of the clear sky blue due to

The refractive index of glass is least for