Physics-
General
Easy
Question
A cylindrical block of area of cross–section A and of material of density r 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:
Ag
- 2Ag
- 2Ag/3
- Ag/3
Ag
Ag
Ag/3
Ag/3
The correct answer is: 2Ag
Related Questions to study
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
physics-
An open-ended U-tube of uniform cross-sectional area contains water (density 1.0 gram/
standing initially 20 centimeters from the bottom in each arm. An immiscible liquid of density 4.0 grams/ centimeter3 is added to one arm until a layer 5 centimeters high forms, as shown in the figure above. What is the ratio 
of the heights of the liquid in the two arms?
An open-ended U-tube of uniform cross-sectional area contains water (density 1.0 gram/ standing initially 20 centimeters from the bottom in each arm. An immiscible liquid of density 4.0 grams/ centimeter3 is added to one arm until a layer 5 centimeters high forms, as shown in the figure above. What is the ratio of the heights of the liquid in the two arms?
physics-General
physics-
A body having volume V and density 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 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
chemistry-
The products of the above reaction is / are :
The products of the above reaction is / are :
chemistry-General
chemistry-
Product (X) in this reaction is :
Product (X) in this reaction is :
chemistry-General
chemistry-
chemistry-General
chemistry-
In the given reaction the product is :
In the given reaction the product is :
chemistry-General
chemistry-
Compound (X) in the above reaction.
Compound (X) in the above reaction.
chemistry-General
chemistry-
Write the product of following reaction :
Write the product of following reaction :
chemistry-General
chemistry-
KI in acetone, undergoes 
reaction with each of P, Q, R and S The rates of the reaction vary as –
P) 
Q) 
R) 
S) 
KI in acetone, undergoes reaction with each of P, Q, R and S The rates of the reaction vary as –
P)
Q)
R)
S)
chemistry-General
chemistry-
The major product of the following reaction is
The major product of the following reaction is
chemistry-General
chemistry-
The major product of the following reaction is :
The major product of the following reaction is :
chemistry-General
chemistry-
The major product obtained in the following reaction is
The major product obtained in the following reaction is
chemistry-General
chemistry-
2-chloro-2-methylpentane on reaction with sodium methoxide in methanol yields
a) 
b) 
c) 
2-chloro-2-methylpentane on reaction with sodium methoxide in methanol yields
a)
b)
c)
chemistry-General
chemistry-
The structure of the major product formed in the following reaction is
The structure of the major product formed in the following reaction is
chemistry-General
