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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two balls of charges q1 and q2 initially have a velocity of the same magnitude and direction. After a uniform electric field has been applied for a certain time. The direction of the first ball changes by 60∘ and the velocity magnitude is reduced by half. The direction of velocity of the second ball changes by 90∘ . In what ratio will the velocity of the second ball change? Determine, the magnitude of the charge to mass ratio of the second ball if it is equal to α1 for the first ball. Ignore the electrostatic interaction between the balls.

Two balls of charges q1 and q2 initially have a velocity of the same magnitude and direction. After a uniform electric field has been applied for a certain time. The direction of the first ball changes by 60∘ and the velocity magnitude is reduced by half. The direction of velocity of the second ball changes by 90∘ . In what ratio will the velocity of the second ball change? Determine, the magnitude of the charge to mass ratio of the second ball if it is equal to α1 for the first ball. Ignore the electrostatic interaction between the balls.

A uniform nonconducting rod of mass ma and length l and the charge on the drop is Q. What will be the number n of the last drop taht can still enter the sphere? Electrically charged drops of nercury fall from an altitude h into a sperical metal vessel of radius R. There is a small opening in the upperapart of the vessel. The mass of eanc drop is m nonconductive walls the bead move Two identical small balls each have a mass m and charge q. When placed in a hemispherical bowl of radius R with frictionless