B
In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked A, B, C, D and E. The transitions A, B and C respectively represent
23
Sep
In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked A, B, C, D and E. The transitions A, B and C respectively represent B B and C respectively represent C D and E. The transitions A In the given figure the energy levels of hydrogen atom [...]
A square loop of side 2a and carrying current I is kept in xz plane with its centre at origin. A long wire carrying the same current I is placed parallel to z-axis and passing through point (0, b, 0), (b >> a). The magnitude of torque on the loop about z-axis will be
19
Sep
A square loop of side 2a and carrying current I is kept in xz plane with its centre at origin. A long wire carrying the same current I is placed parallel to z-axis and passing through point (0, b, 0), (b >> a). The magnitude of torque on the loop about z-axis will be (b [...]
In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5 m and the phase of P is ahead of that of Q by 90°. A, B and C are three distinct points of observation, each equidistant from the midpoint of PQ. The intensities of radiation at A, B, C will be in the ratio
19
Sep
In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5 m and the phase of P is ahead of that of Q by 90°. A, B and C are three distinct points of observation, each equidistant from the [...]
Tags:
B ,
B and C are three distinct points of observation ,
C will be in the ratio ,
each equidistant from the midpoint of PQ. The intensities of radiation at A ,
In the figure below ,
P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5 m and the phase of P is ahead of that of Q by 90°. A ,
A square loop of side 2a and carrying current I is kept in xy plane with its centre at origin. A long wire carrying the same current I is placed parallel to z-axis and passing through point (0, b, 0), (b >> a). The magnitude of torque on the loop about z-axis will be
19
Sep
A square loop of side 2a and carrying current I is kept in xy plane with its centre at origin. A long wire carrying the same current I is placed parallel to z-axis and passing through point (0, b, 0), (b >> a). The magnitude of torque on the loop about z-axis will be (b [...]
A physical quantity z depends on four observables a, b, c and d, as Z = a^2 b^2 3 /√ Cd^3. The percentages of error in the measurement of a, b, c and d are 2%, 1.5%, 4% and 2.5% respectively. The percentage of error in z is
18
Sep
A physical quantity z depends on four observables a, b, c and d, as Z = a^2 b^2 3 /√ Cd^3. The percentages of error in the measurement of a, b, c and d are 2%, 1.5%, 4% and 2.5% respectively. The percentage of error in z is –1/5 4% and 2.5% respectively. The percentage [...]
An ideal gas is taken round a cyclic process represented by the triangle ABC drawn in order on a P-V diagram. The coordinates of A, B, C are (4, 1), (2, 4), (2, 1) respectively. The work done in the complete cycle is
12
Sep
An ideal gas is taken round a cyclic process represented by the triangle ABC drawn in order on a P-V diagram. The coordinates of A, B, C are (4, 1), (2, 4), (2, 1) respectively. The work done in the complete cycle is 1 1) respectively. The work done in the complete cycle is 2 [...]
The specific heats, CP and CV of a gas of diatomic molecules, A, are given (in units of J mol^–1 K^–1) by 29 and 22, respectively. Another gas of diatomic molecules, B, has the corresponding values 30 and 21. If they are treated as ideal gases, then
11
Sep
The specific heats, CP and CV of a gas of diatomic molecules, A, are given (in units of J mol^–1 K^–1) by 29 and 22, respectively. Another gas of diatomic molecules, B, has the corresponding values 30 and 21. If they are treated as ideal gases, then A) are given (in units of J mol^–1 [...]
The equation of state of gas is given (P + (aT^(2)) / (V))V^( c) = (RT + b) where a, b, c and R are constant. The isotherms can be represented by P = AV^(m) – BV^(n), where A and B depend only on temperature and
08
Sep
The equation of state of gas is given (P + (aT^(2)) / (V))V^( c) = (RT + b) where a, b, c and R are constant. The isotherms can be represented by P = AV^(m) – BV^(n), where A and B depend only on temperature and B c and R are constant. The isotherms can [...]
Three identical rods AB,CD and PQ are joined as shown. P and Q are mid points of AB and CD respectively. Ends A,B,C and D are maintained at 0^∘C, 100^∘C, 30^∘C and 60^∘C respectively. The direction of heat flow in PQ is :
05
Sep
Three identical rods AB,CD and PQ are joined as shown. P and Q are mid points of AB and CD respectively. Ends A,B,C and D are maintained at 0^∘C, 100^∘C, 30^∘C and 60^∘C respectively. The direction of heat flow in PQ is : 100^∘C 30^∘C and 60^∘C respectively. The direction of heat flow in PQ [...]
The above is a plot of binding energy per nucleon Eb, against the nuclear mass M;A, B, C, D, E, F correspond to different nuclei. Consider four reactions : where ϵ is the energy released ? In which reaction is ϵ positive ?
04
Sep
The above is a plot of binding energy per nucleon Eb, against the nuclear mass M;A, B, C, D, E, F correspond to different nuclei. Consider four reactions : where ϵ is the energy released ? In which reaction is ϵ positive ? -e against the nuclear mass M;A B C D F correspond to [...]