Question Answers
Sahay Sir > Question Answers
A system undergoes three quasi-static processes sequentially as indicated in the given figure. 1 to 2 is an isobaric process, 2 to 3 is a polytropic process with gama = 4/3 and 3 to 1
29
Oct
A system undergoes three quasi-static processes sequentially as indicated in the given figure. 1 to 2 is an isobaric process, 2 to 3 is a polytropic process with gama = 4/3 and 3 to 1 2 to 3 is a polytropic process with gama = 4/3 and 3 to 1 A system undergoes three quasi-static [...]
An object 1 cm tall is placed 4 cm in front of a mirror. In order to produce an upright image of 3 cm height, one needs
29
Oct
An object 1 cm tall is placed 4 cm in front of a mirror. In order to produce an upright image of 3 cm height, one needs An object 1 cm tall is placed 4 cm in front of a mirror. In order to produce an upright image of 3 cm height one needs October [...]
An ideal gas undergoes the cyclic process shown in a graph below:
29
Oct
An ideal gas undergoes the cyclic process shown in a graph below: An ideal gas undergoes the cyclic process shown in a graph below: October 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Three moles of an ideal gas Cp = 7/2 R at pressure Pa and temperature TA is isothermally expanded to twice its final volume. It is then compressed at constant pressure to its
29
Oct
Three moles of an ideal gas Cp = 7/2 R at pressure Pa and temperature TA is isothermally expanded to twice its final volume. It is then compressed at constant pressure to its Three moles of an ideal gas Cp = 7/2 R at pressure Pa and temperature TA is isothermally expanded to twice its [...]
A concave mirror of focal length f, in vacuum, is placed in a medium of refractive index 2. Its focal length in the medium is :
29
Oct
A concave mirror of focal length f, in vacuum, is placed in a medium of refractive index 2. Its focal length in the medium is : A concave mirror of focal length f in vacuum is placed in a medium of refractive index 2. Its focal length in the medium is : October 29, 2020 [...]
Mark the correct options. (1) If the incident rays are converging we have a real object. (2) If the final rays are converging we have a real image (3) The image of virtual object is called a virtual image (4) if the image is virtual the corresponding object is called virtual object
29
Oct
Mark the correct options. (1) If the incident rays are converging we have a real object. (2) If the final rays are converging we have a real image (3) The image of virtual object is called a virtual image (4) if the image is virtual the corresponding object is called virtual object All of the [...]
Tags:
All of the following statements are correct for real object ,
erect ,
except (1) The magnification produced by a convex mirror is always less than one (2) A virtual ,
inverted ,
magnified image can be formed using a concave mirror (4) A real ,
same-sized image can be formed using a convex mirror ,
same-sized image can be obtained using a plane mirror (3) A virtual ,
An ideal gas is taken from the state A (pressure P, volume V) to the state B (pressure P/2, volume 2V0 along a straight line in the P-V diagram. Select the correct statement(s)
29
Oct
An ideal gas is taken from the state A (pressure P, volume V) to the state B (pressure P/2, volume 2V0 along a straight line in the P-V diagram. Select the correct statement(s) An ideal gas is taken from the state A (pressure P volume 2V0 along a straight line in the P-V diagram. Select [...]
An insulated 0.2 m^3 tank contains helium at 1200 kPa and 47 C. A valve is now opened, allowing some helium to escape. The valve is closed when one-half of the initial mass has
29
Oct
An insulated 0.2 m^3 tank contains helium at 1200 kPa and 47 C. A valve is now opened, allowing some helium to escape. The valve is closed when one-half of the initial mass has allowing some helium to escape. The valve is closed when one-half of the initial mass has An insulated 0.2 m^3 tank [...]
P-V diagram of a cyclic process ABCA is as shown in the given figure. Choose the correct alternative.
29
Oct
P-V diagram of a cyclic process ABCA is as shown in the given figure. Choose the correct alternative. P-V diagram of a cyclic process ABCA is as shown in the given figure. Choose the correct alternative. October 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
One mole of an ideal monatomic gas has initial temperature T0, is made to go through the cycle abca shown in the given figure. If U denotes the internal energy, then choose the
29
Oct
One mole of an ideal monatomic gas has initial temperature T0, is made to go through the cycle abca shown in the given figure. If U denotes the internal energy, then choose the is made to go through the cycle abca shown in the given figure. If U denotes the internal energy One mole of [...]