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General
Easy
Question
In the circuit shown, the resistances are given in ohms and the battery is assumed ideal with emf equal to 3.0 volts. The resistor that dissipates the most power is
The correct answer is:
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In the figure shown the power generated in y is maximum when y = 5
. Then R is
In the figure shown the power generated in y is maximum when y = 5. Then R is
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The ratio of powers dissipatted respectively in R and 3R, as shown is:
The ratio of powers dissipatted respectively in R and 3R, as shown is:
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A person standing at a distance of 6 m from a source of sound receives sound wave in two ways, one directly from the source and other after reflection from a rigid boundary as shown in the figure. The maximum wavelength for which, the person will receive maximum sound intensity, is
A person standing at a distance of 6 m from a source of sound receives sound wave in two ways, one directly from the source and other after reflection from a rigid boundary as shown in the figure. The maximum wavelength for which, the person will receive maximum sound intensity, is
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A taut string at both ends vibrates in its nth overtone. The distance between adjacent Node and Antinode is found to be 'd'. If the length of the string is L, then
A taut string at both ends vibrates in its nth overtone. The distance between adjacent Node and Antinode is found to be 'd'. If the length of the string is L, then
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A wave pulse on a string has the dimension shown in figure. The waves speed is v = 1 cm/s. If point O is a free end. The shape of wave at time t = 3 s is :
A wave pulse on a string has the dimension shown in figure. The waves speed is v = 1 cm/s. If point O is a free end. The shape of wave at time t = 3 s is :
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A pulse shown here is reflected from the rigid wall A and then from free end B. The shape of the string after these 2 reflection will be
A pulse shown here is reflected from the rigid wall A and then from free end B. The shape of the string after these 2 reflection will be
physics-General
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A block of mass 1 kg is hanging vertically from a string of length 1 m and mass/length = 0.001 Kg/m. A small pulse is generated at its lower end. The pulse reaches the top end in approximately
A block of mass 1 kg is hanging vertically from a string of length 1 m and mass/length = 0.001 Kg/m. A small pulse is generated at its lower end. The pulse reaches the top end in approximately
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Figure shown the shape of part of a long string in which transverse waves are produced by attaching one end of the string to tuning fork of frequency 250 Hz. What is the velocity of the waves?
Figure shown the shape of part of a long string in which transverse waves are produced by attaching one end of the string to tuning fork of frequency 250 Hz. What is the velocity of the waves?
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For two different gases X and Y, having degrees of freedom f1 and f2 and molar heat capacities at constant volume CV1 and CV2 respectively, the 
n P versus n V graph is plotted for adiabatic process, as shown
For two different gases X and Y, having degrees of freedom f1 and f2 and molar heat capacities at constant volume CV1 and CV2 respectively, the n P versus n V graph is plotted for adiabatic process, as shown
physics-General
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A cyclic process ABCD is shown in the p-V diagram. Which of the following curves represents the same process if BC & DA are isothermal processes
A cyclic process ABCD is shown in the p-V diagram. Which of the following curves represents the same process if BC & DA are isothermal processes
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An enclosed ideal gas is taken through a cycle as shown in the figure. Then
An enclosed ideal gas is taken through a cycle as shown in the figure. Then
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A student records 
for a thermodynamic cycle 
. Certain entries are missing. Find correct entry in following options
A student records for a thermodynamic cycle . Certain entries are missing. Find correct entry in following options
physics-General
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An ideal gas is taken from state 1 to state 2 through optional path A, B, C & D as shown in P-V diagram. Let Q, W and U represent the heat supplied, work done & internal energy of the gas respectively. Then
An ideal gas is taken from state 1 to state 2 through optional path A, B, C & D as shown in P-V diagram. Let Q, W and U represent the heat supplied, work done & internal energy of the gas respectively. Then
physics-General
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Hydrogen gas and oxygen gas have volume 1 cm3 each at N.T.P
Hydrogen gas and oxygen gas have volume 1 cm3 each at N.T.P
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Figure shows the pressure P versus volume V graphs for two different gas sample at a given temperature. MA and MB are masses of two samples, nA and nB are numbers of moles. Which of the following must be incorrect
Figure shows the pressure P versus volume V graphs for two different gas sample at a given temperature. MA and MB are masses of two samples, nA and nB are numbers of moles. Which of the following must be incorrect
physics-General
