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

In a fluid, buoyant force exists because the pressure at the ______ of an object is greater than the pressure at the top.

If the buoyant force is less, the object will float.

Salt water provides less buoyant force than freshwater.

What do you understand by the term “Buoyancy”.

Assertion (A): The buoyant force on a submerged rigid object can be considered to be acting at the center of mass of the object.
Reason (R): In rigid body, force distributed uniformly through its volume can be considered to be acting at the centre of mass of the body.

Define a Transformer.

The primary coil of a transformer has 800 turns and the secondary coil has 8 turns. It is connected to a 220 V ac supply. What will be the output voltage?

Explain the factors, which will affect the rate of evaporation, taking examples from our daily life experiences.

What is distillation?

Which of the following plastic items are banned by the Government of Tamil Nadu as of 1st January 2019?

______ is one of the main criteria to be considered for the selection of crop (or) remediation of soil. 

What is Vermicompost?

Define Pesticides

______ separates the digestive tract from the body wall. 

The locomotion of phylum Echinodermata is affected by ______.

Analogy:

Echinodermata: ______:: Soft Bodies Animals: ______.

In the animals belonging to the phylum Echinodermata, the body is divided into head, muscular foot, and the visceral mass.

Which of the following is not found in a neuron?

The ______ is a single, long fiber-like process that develops from the cyton.

What are the signs of food spoilage?