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A man of mass 80 kg is riding on a small cart of mass 40 kg which is rolling along a level floor at a speed 2 m/s . He is running on the cart , so that his velocity relative to the cart is 3 m/s in the direction opposite to the motion of cart . What is the speed of the centre of the mass of the system ?
26
Nov
A man of mass 80 kg is riding on a small cart of mass 40 kg which is rolling along a level floor at a speed 2 m/s . He is running on the cart , so that his velocity relative to the cart is 3 m/s in the direction opposite to the motion of [...]
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A man of mass 80 kg is riding on a small cart of mass 40 kg which is rolling along a level floor at a speed 2 m/s . He is running on the cart ,
so that his velocity relative to the cart is 3 m/s in the direction opposite to the motion of cart . What is the speed of the centre of the mass of the system ? ,
Mass is non – uniformly distributed on the circumference of a ring of radius a and centre at origin . Let b be the distance of centre of the ring from origin. Then ,
26
Nov
Mass is non – uniformly distributed on the circumference of a ring of radius a and centre at origin . Let b be the distance of centre of the ring from origin. Then , Mass is non - uniformly distributed on the circumference of a ring of radius a and centre at origin . Let [...]
The frequency of radition emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be
26
Nov
The frequency of radition emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be The frequency of radition emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be November 26, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
Four particles of masses m1=2m,m2=4m,m3=m and m4 are placed at four corners of a square. What should be the value of m4 , so that the centre of mass of all the four particles are exactly at the centre of the square?
26
Nov
Four particles of masses m1=2m,m2=4m,m3=m and m4 are placed at four corners of a square. What should be the value of m4 , so that the centre of mass of all the four particles are exactly at the centre of the square? Four particles of masses m1=2m m2=4m m3=m and m4 are placed at four [...]
The energy of second Bohr orbit of the hydrogen atom is -328 KJ /mol, hence the energy of fourth Bohr orbit would be
26
Nov
The energy of second Bohr orbit of the hydrogen atom is -328 KJ /mol, hence the energy of fourth Bohr orbit would be hence the energy of fourth Bohr orbit would be. The energy of second Bohr orbit of the hydrogen atom is -328 KJ /mol November 26, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
In change in energy ( delta E ) = 3 x 10^-8 J, h = 6.64 x 10^-34 J-s and c = 3 x 10^8 m/s , then wavelength of the light is
26
Nov
In change in energy ( delta E ) = 3 x 10^-8 J, h = 6.64 x 10^-34 J-s and c = 3 x 10^8 m/s , then wavelength of the light is h = 6.64 x 10^-34 J-s and c = 3 x 10^8 m/s In change in energy ( delta E ) = [...]
Which of the following statements does not form part of Bohr’s model of the hydrogen atom
26
Nov
Which of the following statements does not form part of Bohr’s model of the hydrogen atom Which of the following statements does not form part of Bohr's model of the hydrogen atom November 26, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Assertion : In case of isoelectronic ions the ionic size increases with the increase in atomic number. Reason : The greater the attraction of nucleus, greater is the ionic radius.
26
Nov
Assertion : In case of isoelectronic ions the ionic size increases with the increase in atomic number. Reason : The greater the attraction of nucleus, greater is the ionic radius. Assertion : In case of isoelectronic ions the ionic size increases with the increase in atomic number. Reason : The greater the attraction of nucleus [...]
A metre rule, weighing 100 g rests on a table with a part projecting over the edge. the length of the part projecting out if a 5 g body hung at the end just tills the rule is .
26
Nov
A metre rule, weighing 100 g rests on a table with a part projecting over the edge. the length of the part projecting out if a 5 g body hung at the end just tills the rule is . A metre rule weighing 100 g rests on a table with a part projecting over the [...]
An object comprises of a uniform ring of radius R and its uniform chord AB (not necessarily made of the same material) as shown in figure Which of the following can not be the centre of mass of object?
26
Nov
An object comprises of a uniform ring of radius R and its uniform chord AB (not necessarily made of the same material) as shown in figure Which of the following can not be the centre of mass of object? A particle of mass m is made to move with uniform speed v along the perimeter [...]