SSLC (English Medium) कक्षा १० - Tamil Nadu Board of Secondary Education Question Bank Solutions

What is the pH of 1.0 × 10^–5 molar solution of KOH?

The hydroxide ion concentration of a solution is 1 × 10^–11M. What is the pH of the solution?

Explain the mechanism of cleansing action of soap with the help of a labelled diagram.

Which one of the following is an IUCD?

The embryo sac in a typical dicot at the time of fertilization is ______.

Why are family planning methods not adopted by all the people of our country?

______ is used to change the speed of the car.

The ratio of masses of two planets is 2:3 and the ratio of their radii is 4:7 Find the ratio of their accelerations due to gravity.

Mark the correct choice

1. Assertion: LED bulbs are far better than incandescent bulbs.
2. Reason: LED bulbs consume less power than incandescent bulbs.

Why is tungsten metal used in bulbs, but not infuse wires?

What are the advantages of LED TV over the normal TV?

List the merits of the LED bulb.

How can menstrual hygiene be maintained during menstrual days?

When is World Menstrual Hygiene Day observed?

What are the functions of blood?

Power of a lens is – 4D, then its focal length is

According to Rayleigh’s scattering law, the amount of scattering of light is inversely proportional to the fourth power of its ______.

The power of lens depends on the focal length of the lens

Increase in the converging power of eye lens cause ‘hypermetropia'

Match the following: