TNPSC General Knowledge Online Test

Explanation
Jaipur is known as the "Rose pink city" of India because of the dominant pink color of its buildings. The city is famous for its stunning architecture, including the iconic Hawa Mahal and the grand Amer Fort. The pink color is said to represent hospitality and was used to paint the buildings in honor of the visit of Prince Albert in 1876. Jaipur is a popular tourist destination and is known for its rich history, vibrant culture, and beautiful palaces and forts.

Explanation
Gopal Krishna Gokhale is the correct answer because he was one of the founding members of the Servants of India Society. Gokhale was a prominent social and political leader during the Indian independence movement. He believed in education and social reform as a means to uplift the Indian society. Gokhale's leadership and advocacy for the rights of the Indian people made him an influential figure in the fight for independence.

Explanation
Nodes and antinodes are formed in a longitudinal wave. In a longitudinal wave, the particles of the medium vibrate parallel to the direction of wave propagation. Nodes are the points in the wave where the particles of the medium do not vibrate, while antinodes are the points where the particles vibrate with maximum amplitude. This is in contrast to transverse waves, where the particles vibrate perpendicular to the direction of wave propagation. Stationary waves are formed when two waves of the same frequency and amplitude traveling in opposite directions superpose, resulting in nodes and antinodes. Progressive waves are waves that transfer energy from one point to another.

Explanation
An electric motor is a device that converts electrical energy into mechanical energy. It works on the principle of electromagnetic induction, where a current-carrying conductor experiences a force when placed in a magnetic field. This force causes the motor to rotate, converting electrical energy into mechanical energy.

Explanation
Omathur Ramaswamy Reddy was the first Chief Minister of Tamil Nadu after Independence.

Explanation
Tanguturi Prakasam Pantulu was called as 'Andhra Kesari'.

Explanation
The name 'Madras State' was changed to 'Tamilnadu' in the year 1969.

Explanation
Manickavelu Naicker is the founder of the Commonweal Party in Tamilnadu.

Explanation
Sound travels fastest in steel because steel is a solid material with a high density and elasticity. These properties allow sound waves to propagate quickly through the material, resulting in faster sound transmission compared to other mediums like water, air, or vacuum.

Explanation
A light year is a unit of distance, not intensity of light or time. It is defined as the distance that light travels in one year in a vacuum. Since light travels at a constant speed, this unit is used to measure vast distances in space, such as the distance between stars or galaxies. Therefore, the correct answer is distance.