Physics-
General
Easy
Question
In the given arrangement, if hanging mass will be changed by 4%, then percentage change in the wave speed in string will be
- 2%
- 8%
- 3%
- 4%
The correct answer is: 4%
Related Questions to study
physics-
The vibrating of four air columns are represented in the figure. The ratio of frequencies 
The vibrating of four air columns are represented in the figure. The ratio of frequencies
physics-General
physics-
A ‘pop’ gun consists a tube 25cm long closed at one end by a cork and the other end by a tightly fitted piston as shown. The piston is pushed slowly in. When the pressure rises to one and half times the atmospheric pressure, the cork is violently blow out. The frequency of the ‘pop’ caused by its ejection is (V = 340m/s)
A ‘pop’ gun consists a tube 25cm long closed at one end by a cork and the other end by a tightly fitted piston as shown. The piston is pushed slowly in. When the pressure rises to one and half times the atmospheric pressure, the cork is violently blow out. The frequency of the ‘pop’ caused by its ejection is (V = 340m/s)
physics-General
physics-
A source of sound is travelling at 
along a road, towards a point A. When the source is 3m away from A, a person standing at a point O on a road perpendicular to the track hears a sound of frequency ‘n ’. The distance of O from A at that time is 4m. If the original frequency is 640 Hz, then the value of n is (given velocity of 
A source of sound is travelling at along a road, towards a point A. When the source is 3m away from A, a person standing at a point O on a road perpendicular to the track hears a sound of frequency ‘n ’. The distance of O from A at that time is 4m. If the original frequency is 640 Hz, then the value of n is (given velocity of
physics-General
chemistry-
Faraday is equal to :
Faraday is equal to :
chemistry-General
chemistry-
0.1 ampere current is passed for 10 seconds through copper and silver voltameters. The metal that is deposited more is..
0.1 ampere current is passed for 10 seconds through copper and silver voltameters. The metal that is deposited more is..
chemistry-General
chemistry-
1 Faraday of electricity will liberate 1g atom of the metal from the solution of :
1 Faraday of electricity will liberate 1g atom of the metal from the solution of :
chemistry-General
chemistry-
During electrolysis process of fused CaH2, H2 is liberated at :
During electrolysis process of fused CaH2, H2 is liberated at :
chemistry-General
chemistry-
Assertion (A): Carbon exhibits catenation to maximum extent.
Reason (R): Valency of carbon is 4.
Assertion (A): Carbon exhibits catenation to maximum extent.
Reason (R): Valency of carbon is 4.
chemistry-General
chemistry-
Statement - A :Carbon has two unpaired electrons in its ground state.
Statement - B :Carbon forms 4 covalent bonds in all its compounds.
Statement - C :Carbon exists in ground state in all its compounds.
Statement - A :Carbon has two unpaired electrons in its ground state.
Statement - B :Carbon forms 4 covalent bonds in all its compounds.
Statement - C :Carbon exists in ground state in all its compounds.
chemistry-General
chemistry-
The end product ‘Z’ in the following reaction, 
is
The end product ‘Z’ in the following reaction, is
chemistry-General
chemistry-
Identify Z in 
Identify Z in
chemistry-General
chemistry-
Westrosol is
Westrosol is
chemistry-General
chemistry-
Consider the given figure showing that possible levels of the energy of 
ion depending on internuclear distance versus potential energy of the system .
It may be easily assumed that the ground state of the molecular hydrogen ion, corresponds to the lowest level which means that
Consider the given figure showing that possible levels of the energy of ion depending on internuclear distance versus potential energy of the system .
It may be easily assumed that the ground state of the molecular hydrogen ion, corresponds to the lowest level which means that
chemistry-General
chemistry-
Which bond angle 
would result in the maximum dipole moment for the triatomic molecule XY2 as shown below.
Which bond angle would result in the maximum dipole moment for the triatomic molecule XY2 as shown below.
chemistry-General
physics-
A long rubber tube having mass 0.9kg is fastened to a fixed support and the free end of the tube is attached to a chord which passes over a pulley and supports an object, with a mass of 5kg as shown in figure. If the tube is struck by a transverse blow at one end, the time required for the pulse to reach the other end is
A long rubber tube having mass 0.9kg is fastened to a fixed support and the free end of the tube is attached to a chord which passes over a pulley and supports an object, with a mass of 5kg as shown in figure. If the tube is struck by a transverse blow at one end, the time required for the pulse to reach the other end is
physics-General
