SSLC (English Medium) इयत्ता ८ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Viscosity depends on the pressure of a liquid.

Describe an experiment to prove that the pressure in a liquid increase with depth.

If the angle of incidence is 45°, then the angle of reflection is ________.

An electroscope has been charged by induction with the help of charged glass rod. The charge on the electroscope is

The body which has lost electrons becomes ________.

Electroscope is a device used to charge a body by induction.

Give a reason for the following

When you touch the metal disc of an electroscope with a charged glass rod the metal leaves get diverged.

Give a reason for the following.

In an electroscope, the connecting rod and the leaves are all metals.

What is earthing?

What is electroscope? Explain how it works.

What is ductility?

Why are bells made of metals?

Can you store pickle in an aluminium utensil? Give reason.

Give reasons for the following.

1. Aluminum foils are used to wrap food items.
2. Immersion rods for heating liquids are made up of metallic substances.
3. Sodium and potassium are stored in kerosene.
4. Mercury is used in thermometers.

Which of the following is known as azote?

How can we prove that the electrons carry a negative charge?

In basic solution turmeric indicator paper changes from yellow to _______.

Turmeric is used as a _______.

In acidic solution, the colour of the hibiscus indicator paper will change to _____.

Hibiscus flower is an example for natural indicator.