Answer the following questions based on a hot cathode ray tube.

1. Name the charged particles.
2. State the approximate voltage used to heat the filament.
3. What will happen to the beam when it passes
...

State any four changes in the administration of the British Government as a consequence of the Revolt.

Certain blank spaces are left in the following table and these are labelled as A, B, C, D and E. Identify each of them.

Name the gas that is produced in - Reaction of ethanol and sodium

Find the value of ‘x’ and ‘y’ if:

The energy released when an electron is added to a neutral gaseous isolated atom to form a negatively charged ion.

The part of the brain that carries impulses from one hemisphere of the cerebellum to the other

An electric bulb of resistance 500 Ω, draws a current of 0.4 A. Calculate the power of the bulb and the potential difference at its end.

Squeezing out of white blood cells from the capillaries into the surrounding tissues.

Name a state where: Tube wells are common

Action of concentrated sulphuric acid on Sulphur.

Give a geographical reason: Jute is retted after it has been harvested.

Read the extract given below and answer the questions that follow:

How they toiled and sweated to get the hay in! But their efforts were rewarded, for the harvest was an even bigger success than they...

Given below is an apparatus which was setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:

1. Name the process being
...

(i) Define Calorimetry. (ii) Name the material used for making a Calorimeter. (iii) Why is a Calorimeter made up of thin sheets of the above material answered in (ii)?

When a current carrying conductor is placed in a magnetic field, it experiences a mechanical force. What should be the angle between the magnetic field and the length of the conductor so that the...