SSLC (English Medium) कक्षा ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions

What are the challenges faced by hydrophytes in their habitat?

State whether true or false. If false, correct the statement.

Rhizobium, associated with root nodules of leguminous plants fixes atmospheric nitrogen.

Describe the role of microbes in agriculture and industries.

______ is the method of growing plants without soil.

Enumerate the advantage of hydroponics.

What is the charge of a neutron?

Length is ______.

The Unit used to measure length ______.

What unit will you use to measure the length of our classroom?

SI unit of electric current is ______.

Larger unit for measuring time is ______.

Yard was used as the unit of length.

The SI unit of mass is kg.

A particle is moving in a circular pattern of radius r. The displacement after half a circle would be ______.

The rate of change of displacement ______.

A scalar quantity has ______.

A body is projected up with an initial velocity of u m/s. It goes up to a height, ‘h’ meters in seconds' time. Then it comes back at the point of projection.

Considering negligible air resistance, which of the following statement is true?

An ant moves from one corner of a room diagonally to the opposite corner. If the dimensions of the hall are 8m x 6m, the displacement of the ant is ______.

The displacement covered by the second hand of radius V in a clock after one revolution is ______.

A man leaves his house at 6.30 a.m. for a morning walk and returns back at 7.30 a.m. after covering 4 km. The Displacement covered by him is ______.