Question
 What is the length of the bridge which a man riding 35
km an hour can cross in 3 min.?Solution
Speed = 35 km/hr, Time = 3 minutes = 3 x 60= 180 seconds, Distance = ? Distance = Speed `xx`  Time = 35 `xx`  (5/18) `xx` 180  = 1750 m      Â
A coil with N turns and area A is placed in a magnetic field varying as B = B₀·e–αt. What is the induced EMF at time t = 0?
Which instrument is primarily used to measure the relative density of liquids by utilizing the principle of buoyancy?
A sample contains equal numbers of two isotopes X and Y, each with half-lives of 10 days and 20 days respectively. What is the ratio of activities Aâ‚“ ...
The potential inside a charged hollow sphere is __________.
If n resistors with R Ω each as resistance are connected in parallel, then the equivalent resistance of the network is:
Hyperrnetropia or longsight can be corrected by using :
A liquid is kept in a regular cylindrical vessel up to a certain height. If this vessel is replaced by another cylindrical vessel having half the area o...
The emission of a beta-minus particle from a nucleus results in:
A projectile is fired at an angle θ and reaches maximum height
H and range R. The angle between velocity and acceleration at the highest poin...
Which of the following does not affect the value of acceleration due to gravity?
Relevant for Exams:
