CBSE Class X – Science Physics Exam (Full Syllabus)

Inside the magnet, the field lines move from :

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

Which of the following declaration is not correct about the magnetic field?

Direction of rotation of a coil in electric motor is intent by:

A D.C generator works on the theory of:

when an iron core is inserted into a current carrying solenoid

To determine the direction of force experienced by a current carrying conductor placed in a uniform magnetic feld.

Which of the following is not attracted by a magnet:

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

Electrical resistivity of a given metallic wire depends upon:

To get 2 Ω resistance using only 6 Ω resistors, the number of them required is

True test of charge is

One horsepower (hp) is parallel to

Copper is not approved to make fuse wire because it:

The rate at which electrical work is done or the rate at which electrical energy is consumed

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

Arpit remarked that he has seen wavering of objects when seen through a stream of hot air rising above a tandoor or a fire. He said that the air just above the fire becomes hotter than the air further higher up. He further said that this wavering can also be seen in the earth’s atmosphere as the earth’s atmosphere is not evenly distributed ,What is the total time diference on duration of day on earth?

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

Why is red used as the stopping light at traffic signals?

The effect seen Color of the sky during Sunrise and Sunset

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

Lenses which have both concave and convex structure.

Rainbow is caused due to

The colour of the clear sky blue due to