Question
Six persons, N, O, P, Q, R and S, live in a six storey
building, such that bottommost floor is numbered as 1 and the floor above it is numbered as 2 and so on. N lives two floors above R. Only two persons live between N and S. S lives above R. O lives one floor above Q. Who lives three floors above P?Solution
Calculate the kinetic energy of a body of mass 5 kg moving with a velocity of 4 m/s.
What is the speed of sound in air at room temperature (approx)?
If n resistors with R Ω each as resistance are connected in parallel, then the equivalent resistance of the network is:
Which of the following is an alpha particle which is emitted in radioactivity?
Ratio of intensities of two waves with amplitudes 2 and 3 is:
A pond of water appears less deep due to –
An electric motor converts _____ energy to mechanical energy.
A nucleus with mass number A and atomic number Z undergoes β⁻ decay. Which of the following is correct about the daughter nucleus?
Two bodies of masses m and 4m are separated by a distance d. Where will the gravitational field be zero along the line joining them?
A mass of 0.1 kg executes SHM with amplitude 10 cm. Its kinetic energy at the mean position is 8 × 10-3 J. What is its equation of motion if...
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