Recent questions in 12th Science Maharashtra Board

0 votes

3 answers 223 views

Define linear simple harmonic motion.

asked May 31, 2022 in Chapter5:Oscillations by nehapatil (3.2k points)

0 votes

1 answer 147 views

The graph shows variation of displacement of a particle performing S.H.M. with time t.

asked May 31, 2022 in Chapter5:Oscillations by nehapatil (3.2k points)

0 votes

1 answer 108 views

Two identical springs of constant k are connected, first in series and then in parallel

asked May 31, 2022 in Chapter5:Oscillations by nehapatil (3.2k points)

0 votes

1 answer 92 views

The length of second's pendulum on the surface of earth is nearly 1 m. Its length on the surface of moon should be

asked May 31, 2022 in Chapter5:Oscillations by nehapatil (3.2k points)

0 votes

1 answer 172 views

A body of mass 1 kg is performing linear S.H.M. Its displacement x (cm) at t (second) is given by x = 6 sin (100t + p/

asked May 31, 2022 in Chapter5:Oscillations by nehapatil (3.2k points)

0 votes

1 answer 219 views

A particle performs linear S.H.M. starting from the mean position. Its amplitude is A and time period is T.

asked May 31, 2022 in Chapter5:Oscillations by nehapatil (3.2k points)

0 votes

1 answer 198 views

A hypothetical thermodynamic cycle is shown in the figure. Calculate the work done in 25 cycles.

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 142 views

An ideal monatomic gas is adiabatically compressed so that its final temperature is twice its initial temperature.

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 198 views

An ideal gas is taken through an isothermal process. If it does 2000 J of work on its environment

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 150 views

A Carnot refrigerator operates between 250ºK and 300ºK. Calculate its coefficient of performance.

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 127 views

Efficiency of a Carnot cycle is 75%. If temperature of the hot reservoir is 727ºC

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 412 views

A system releases 125 kJ of heat while 104 kJ of work is done on the system. Calculate the change in internal energy.

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 114 views

A gas contained in a cylinder fitted with a frictionless piston expands against a constant external pressure of 1 atm

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 108 views

A mixture of hydrogen and oxygen is enclosed in a rigid insulting cylinder. It is ignited by a spark.

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 92 views

Why should a Carnot cycle have two isothermal two adiabatic processes?

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 250 views

What sets the limits on efficiency of a heat engine?

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 189 views

Give an example of some familiar process in which heat is added to an object, without changing its temperature.

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 140 views

Give an example of some familiar process in which no heat is added to or removed form a system

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 128 views

A gas contained in a cylinder surrounded by a thick layer of insulating material is quickly compressed.

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

0 votes

1 answer 105 views

During refrigeration cycle, heat is rejected by the refrigerant in the

asked May 30, 2022 in Chapter4:Thermodynamics by Mahendra (675 points)

Recent questions in 12th Science Maharashtra Board

Most popular tags