Recently Active Questions

*Image* A block of density ρ floats in equilibrium in a tank filled with two different liquids as shown.what is the value of 'l' ? ...

*Image* The plot of kinetic energy vs time of a particle performing SHM is shown in above figure.What can be inferred from the graph ? ...

*Image* A particle executes SHM along Y axis according to the equation y = Asinωt.A light source is at a distance d from Y axis and a screen is at a distance 'nd' from Y axis as shown.What is the amplitude of the ...

A ring of total mass M and radius a has a linear mass density λ = λocosφ , φ being the reference angle.What is the gravitational potential produced by the ring at the centre ? ...

*Image* A tank filled with liquid of density ρ is given an acceleration a towards right.The tank is in the shape of a cube of side 'l' and it is closed from all sides.What is the pressure at P ? ...

*Image* In the above system the spring has a mass M and the block has a mass m.The spring constant is K.If the block is given an initial velocity Vo what is the maximum elongation of the spring? ...

*Image* The tank filled with water is rotated about an axis as shown in figure.The left wall and the right wall of the tank are located at a distance r1 and r2 from the axis respectively.During rotation if the height of liqui ...

*Image* Left block is given an initial velocity Vo towards right.Which of the following equation describes the velocity of centre of mass ? ...

What is the probability that a particle doing SHM with amplitude A is at a distance ±A/2 from the mean at a certain instant of time ? ...

Statement I - If a spring is broken down to small springs , each of the resulting spring has a higher stiffness than the original spring. Statement II - Since force goes un-diminished in a spring and product of stiffness and ...

Statement I - Machine parts are jammed in winter. Statment II - Viscosity increases with fall in temperature. ...

Statement I - Value of g at centre of earth and at infinity is zero. Statement II - The rate of decrease of 'g' is constant with depth but variable with height. ...

Which of the following is true ? ...

When two soap bubbles coalesce to form a single soap bubble , ...

Which of the following is true ? ...

Which of the following is true ? ...

*Image* In the above diagram a liquid is being fed at a velocity Vo in a pipe. A and a are the cross-sections of the pipe. What is the range of the liquid jet ? ...

If a particle makes simple-harmonic-motion with a frequency ω , what is the frequency with which its kinetic energy oscillates ? ...

A block attached to a spring is released from rest with the spring being initially unstreched.If the natural length of the spring is 'L' , what is the variation of the displacement 'z' of the block from the su ...

In determination of 'g' by simple pendulum experiment , if we use a rod of length L instead of a thread and a ball , what should be the length of the rod so that the time period measured will be 4s ? Take g = ...

Some unknown quantity κ is found to obey the following equation, ∂/∂t ( ∫ mκ dx ) = βV2/R , Where m represents mass , β is a dimensionless constant , V is voltage ,x is displacement and R is resistance of a coil ...

What is the total energy of a particle on the earth's surface when it's given escape velocity ? ...

If (n-k) divisions in the main scale coincides with 'n' divisions in vernier scale , what is the least count of the instrument ? Given 1 main scale division measures 'a' units. ...

Find the sum of the series 1-1/2+1/4-1/8+.................... n terms ...

What is the difference of the minimum and maximum distance between the points given on the two curves |z-i|=2 and kz=0 (where k spans all real numbers! and z=1+0 i ) ...

Tn = 1/n + 1/n2 + 1/n3.................. Sn = 1/T1 + 1/T2 + 1/T3 + 1/T4 ...................1/Tn Value of Sn is given by? ...

For A 6 faced dice. Two faces are said to be touching each other if they have a common side! Two faces are pseudo touching if they have a common vertex only, But no common side! Two faces are said to be opposite, if they have ...

How many pairs of pseudo touching faces are there? ...

No of ways to color the dice so that the opposite faces have no different color? There are 4 colors! ...

If the opposite surfaces are to be givne the same color, what is the number of ways to color the dice with 4 colors? ...