Question
The surface temperature of the Sun is nearly
-Solution
The correct answer is C
A pulse of light duration 10-5 s is absorbed fully by a little object initially at rest. If the power of this pulse is 45 × 10-3...
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?
In an AC circuit, voltage and current are given by V = 200 sin(ωt) and I = 10 sin(ωt + π/3). What is the average power consumed?
Two tuning forks produce 4 beats per second. If one has a frequency of 256 Hz, the frequency of the other is:
What does 'IC' stand for in electronics?
Which of the following is the energy quantum of radiation?
If n resistors with R Ω each as resistance are connected in parallel, then the equivalent resistance of the network is:
A body of mass 3 kg has a velocity of 4 m/s. Find its kinetic energy. Â
If Planck’s constant h, gravitational constant G, and speed of light v are taken as fundamental units, the dimension of time is:
In streamline flow through a horizontal pipe, at one point the cross-sectional area is 4 cm² and velocity is 8 m/s. If at another point the cross-secti...
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