Physics Test - ...

The Atom bomb and the hydrogen bomb are based on the principles of:

The minimum value of effective capacitance that can be obtained by combining 3 capacitors of capacitances 1 pF, 2 pF and 4 pF is

When a simple pendulum is taken to the pole from the equator then its time period will:

A person is unable to read a newspaper without his glasses. He is most probably suffering from

The force required to raise a circular ring of radius 4cm placed on the surface of water is : (Surface tension of water 75 dyne/cm)

If the empirical formula for the observed wavelengths for hydrogen is 1/λ = R(1/1² - 1/n²), where n is integral values higher than 1, then it represents the _____________ spectral series.

In a typical stress-strain curve given below, the stress at point B is called ______________.

Electrons used in an electron microscope are accelerated by a voltage of 25 kV. If the voltage is increased to 100 kV then the de-Broglie wavelength associated with the electrons would

The work done in carrying a charge q once around a circle of radius r with a charge Q placed at the center will be

The energy stored in a parallel plate capacitor is E and the potential difference between the plates is V, then the E is related to V as:

What is the force between two small charged spheres having charges of 2 × 10^-7 C and 3 × 10^-7 C placed 30 cm apart in the air?

If the temperature of a conductor increases, then its resistance also increases because

Find the effective resistance between points A and B.

If an object is placed at a distance of f from the convex mirror of focal length f, then distance of image from the mirror will be:

The electrons in the beam of a television tube move horizontally from South to North. The vertical component of the earth's magnetic field points down. The electron is deflected towards _____