CBSE Class X – Science Physics Exam (Full Syllabus)

Inside the magnet, the field lines move from :

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 current through a horizontal power line flows from south to North direction. The direction of magnetic field line 0.5m above it is:

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

Example of permanent magnet is

A coil of many circular turns of wire wrapped in the shape of a cylinder

You are holding the current-carrying wire in your right hand so that your thumb points in the direction of current, then the direction in which your fingers encircle the wire will give the direction of the magnetic feld lines around the wire.explain

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

A boy records that 4000 joule of work is required to transfer 10 coulomb of charge between two points of a resistor of 50 Ω. The current passing through it is:

A fuse wire frequently gets burnt when used with a good heater. It is advised to use a fuse wire of

A cooler of 1500 W, 200 volt and a fan of 500 W, 200 volt are to be used from a household supply. The rating of fuse to be used is:

A student drives out an experiment and plots the V-I graph of three samples of nichrome wire with resistances R1 R2 and R3 respectively. Which of the following is huge?

True test of charge is

Copper is not approved to make fuse wire because it:

The commercial unit of electrical energy

When a 4 V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. The value of the resistance of the resister is

Which of the following statements is correct regarding the propagation of light of diferent colours of white light in air?

The absorption of light by a molecule depends on the

The red colour of the sun at the time of sunrise and sunset is because:

The splitting of light into its component colours is called

The effect seen Color of the sky during Sunrise and Sunset

The defect in a person can see nearby objects but not far away objects

When a person can see faraway objects but not nearby objects.

Visible spectrum is the band of coloured components of a