Physics-
General
Easy

Question

A cylindrical block of area of cross–section A and of material of density rho is placed in a liquid of density one–third of density of block. The block compresses a spring and compression in the spring is one–third of the length of the block. If acceleration due to gravity is g, the spring constant of the spring is:

  1. rho Ag    
  2. 2rho Ag    
  3. 2rho Ag/3    
  4. rho Ag/3    

The correct answer is: 2rho Ag

Related Questions to study

General
physics-

There is a metal cube inside a block of ice which is floating on the surface of water. The ice melts completely and metal falls in the water. Water level in the container

There is a metal cube inside a block of ice which is floating on the surface of water. The ice melts completely and metal falls in the water. Water level in the container

physics-General
General
physics-

A body having volume V and density r is attached to the bottom of a container as shown. Density of the liquid is d(>r). Container has a constant upward acceleration a. Tension in the string is

A body having volume V and density r is attached to the bottom of a container as shown. Density of the liquid is d(>r). Container has a constant upward acceleration a. Tension in the string is

physics-General
General
physics-

A metal ball of density 7800 k g divided by m to the power of 3 end exponent is suspected to have a large number of cavities It weighs 9.8 kg when weighed directly on a balance and 1.5 kg less when immersed in water . The fraction by volume of the cavities in the metal ball is approximately:

A metal ball of density 7800 k g divided by m to the power of 3 end exponent is suspected to have a large number of cavities It weighs 9.8 kg when weighed directly on a balance and 1.5 kg less when immersed in water . The fraction by volume of the cavities in the metal ball is approximately:

physics-General
parallel
General
physics-

Choose the correct statement

Choose the correct statement

physics-General
General
physics-

A quick judgement about a measurement of some particular quantity is called

A quick judgement about a measurement of some particular quantity is called

physics-General
General
physics-

An instrument used for seeing distant objects is called

An instrument used for seeing distant objects is called

physics-General
parallel
General
physics-

The phenomena which are taking place in matter and energy are studied in

The phenomena which are taking place in matter and energy are studied in

physics-General
General
physics-

Calculate the potential energy if mass and height are 500g and 2m respectively. (g = 10 m/s2)

Calculate the potential energy if mass and height are 500g and 2m respectively. (g = 10 m/s2)

physics-General
General
physics-

In case of electric train ............. energy converts into ....................... energy.

In case of electric train ............. energy converts into ....................... energy.

physics-General
parallel
General
physics-

Work is converted into ...............

Work is converted into ...............

physics-General
General
physics-

Solar cell converts .............. energy into .................. energy.

Solar cell converts .............. energy into .................. energy.

physics-General
General
physics-

A Catapult converts .............. energy into ................... energy.

A Catapult converts .............. energy into ................... energy.

physics-General
parallel
General
physics-

A moving arrow consists of ................ energy.

A moving arrow consists of ................ energy.

physics-General
General
physics-

Formula for kinetic energy is ...........

Formula for kinetic energy is ...........

physics-General
General
physics-

Stretched bow consists of ............. energy.

Stretched bow consists of ............. energy.

physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.