(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

1. Name the rule that is used to predict the direction of deflection of the magnetic compass.
2. State the direction of current in the conductor (X to Y or Y to X) when the circuit is complete.
3. If resistance R is increased, then what will be the effect on the magnetic lines of force around the conductor?

A moment of couple has a tendency to rotate the body in an anticlockwise direction. Then the moment of the couple is taken as ______.

Mixture of red + blue + green is passed through a convex lens as shown in the diagram below. State whether the ray passes through a single point or through different points on the principal axis after refraction.

When sunlight passes through water droplets in the atmosphere it gets dispersed into its constituent colours forming a rainbow. A similar phenomenon is observed when white light passes through a prism.

Which colour will show the maximum angle of deviation and which colour will show the minimum angle of deviation?

When sunlight passes through water droplets in the atmosphere it gets dispersed into its constituent colours forming a rainbow. A similar phenomenon is observed when white light passes through a prism.

Instead of sunlight, a green-coloured ray is passed through a glass prism. What will be the colour of the emergent ray?

How is mechanical advantage related to velocity ratio for a practical machine?

Give two reasons for a machine not to be 100% efficient?

What does the positive and negative sign of potential convey?

Find the potential difference required to flow a current of 300 mA in a wire of resistance 20 Ω.

State the couple's effect on a body.

If the power of a motor is 100 kW, at what speed can it raise a load of 50,000 N?

To which wire should the fuse be connected?

Explain the meaning of the student 'current rating of a fuse is 5A'.

A boy weighing 40 kgf climbs up a stair of 30 steps each 20 cm high in 4 minutes and a girl weighing 30 kgf does the same in 3 minutes. Compare:

1. The work done by them.
2. The power developed by them.

State the characteristics required in a material to be used as an effective fuse wire.

A stone of mass m is rotated in a circular path with a uniform speed by tying a strong string with the help of your hand. Answer the following questions

1) Is the stone moving with a uniform or variable speed?

2) Is the stone moving with a uniform acceleration? In which direction does the acceleration act?

3) What kind of force acts on the hand and state its direction?

When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall

1) Name the force exerted by the table top

2) What is the direction of the force?

Define equilibrium.

In a beam balance, when the beam is balanced in a horizontal position, it is in ______ equilibrium.

How is work done by a force measured when the force is in the direction of displacement?