Physics-
General
Easy
Question
The de Broglie wave present in fifth Bohr orbit is
The correct answer is:
Related Questions to study
physics-
The above is a plot of binding energy per nucleon 
against the nuclear mass 
correspond to different nuclei. Consider four reactions
where
is the energy released? In which reaction is positive?
The above is a plot of binding energy per nucleon against the nuclear mass correspond to different nuclei. Consider four reactions
where is the energy released? In which reaction is positive?
physics-General
physics-
To determine the half- life of radioactive element, a student plots graph of ln
t. Here 
is the rate of radioactive decay at time t. If the number of radioactive nuclei of this element decreases by a factor of 
after 4.16 yr, the value of
is
To determine the half- life of radioactive element, a student plots graph of lnt. Here is the rate of radioactive decay at time t. If the number of radioactive nuclei of this element decreases by a factor of after 4.16 yr, the value of is
physics-General
physics-
Figure shows the energy levels 
and 
of an atom where is the ground state. 
red line in the emission spectrum of the atom can be obtained by an energy level change from 
to 
. A blue line can be obtained by following energy level change
Figure shows the energy levels and of an atom where is the ground state. red line in the emission spectrum of the atom can be obtained by an energy level change from to . A blue line can be obtained by following energy level change
physics-General
physics-
The energy level diagram for an hydrogen like atom is shown in the figure. The radius of its first Bohr orbit is
The energy level diagram for an hydrogen like atom is shown in the figure. The radius of its first Bohr orbit is
physics-General
physics-
The count rate of 
of radioactive material was measured at different times and this has been shown in the figure. The half life of material and the total counts (approximately) in the first half life period, respectively are
The count rate of of radioactive material was measured at different times and this has been shown in the figure. The half life of material and the total counts (approximately) in the first half life period, respectively are
physics-General
physics-
Drawings I and II show two samples of electric field lines
Drawings I and II show two samples of electric field lines
physics-General
physics-
Figure shows lines of force for a system of two point charges. The possible choice for the charges is
Figure shows lines of force for a system of two point charges. The possible choice for the charges is
physics-General
physics-
Figure shows the electric lines of force emerging from a charged body. If the electric field at ‘A’ and ‘B’ are EA and EB respectively and if the displacement between ‘A’ and ‘B’ is ‘r’ then
Figure shows the electric lines of force emerging from a charged body. If the electric field at ‘A’ and ‘B’ are EA and EB respectively and if the displacement between ‘A’ and ‘B’ is ‘r’ then
physics-General
biology
Given below is one of the types of ecological pyramids. This type represents –
Given below is one of the types of ecological pyramids. This type represents –
biologyGeneral
physics-
Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the positive charge kept at the centre ‘O’ is
Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the positive charge kept at the centre ‘O’ is
physics-General
physics-
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity 
as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time interval between minimum and maximum frequency as received by the detector
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time interval between minimum and maximum frequency as received by the detector
physics-General
physics-
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time at which the detector will hear the maximum frequency for the 1st time
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time at which the detector will hear the maximum frequency for the 1st time
physics-General
physics-
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The frequency as received by the detector when it rotates by an angle 
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The frequency as received by the detector when it rotates by an angle
physics-General
physics-
Two speakers 
driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s If he continous to walk along the same line how many more maxima can he hear
Two speakers driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s If he continous to walk along the same line how many more maxima can he hear
physics-General
physics-
Two speakers driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which he will hear maximum intensity for first time?
Two speakers driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which he will hear maximum intensity for first time?
physics-General
