Please select a subject first
Advertisements
Advertisements
The water droplets are spherical in free fall due to ______
Concept: undefined >> undefined
The surface tension of a liquid at critical temperature is ______
Concept: undefined >> undefined
Advertisements
What will be the shape of the liquid meniscus for the obtuse angle of contact?
Concept: undefined >> undefined
Water rises to a height of 20 mm in a capillary tube. If the radius made 1/3rd of its previous value, to what height will the water now rise in the tube?
Concept: undefined >> undefined
Two soap bubbles have a radius in the ratio of 2:3. Compare the works done in blowing these bubbles.
Concept: undefined >> undefined
Explain the phenomena of surface tension on the basis of molecular theory.
Concept: undefined >> undefined
Obtain an expression for the capillary rise or fall using the forces method.
Concept: undefined >> undefined
A u-tube is made up of capillaries of bore 1 mm and 2 mm respectively. The tube is held vertically and partially filled with a liquid of surface tension 49 dyne/cm and zero angles of contact. Calculate the density of the liquid, if the difference in the levels of the meniscus is 1.25 cm. take g = 980 cm/s2
Concept: undefined >> undefined
Two systems at the same temperature are said to be in ______
Concept: undefined >> undefined
When two objects are said to be in thermal equilibrium?
Concept: undefined >> undefined
Write a note on thermodynamic equilibrium.
Concept: undefined >> undefined
A particle is moving in a circle with uniform speed. Its motion is ______
Concept: undefined >> undefined
Light of wavelength 5000 A.U. falls on a plane reflecting surface. The frequency of reflected light is ______
Concept: undefined >> undefined
In Young’s double-slit experiment, if there is no initial phase difference between the light from the two slits, a point on the screen corresponds to the 5th minimum. What is the path difference?
Concept: undefined >> undefined
What is stated in terms of Bohr magneton?
Concept: undefined >> undefined
The electron in the hydrogen atom is moving with a speed of 2.5 × 106 m/s in an orbit of a radius of 0.5 Å. What is the Magnetic moment of the revolving electron?
Concept: undefined >> undefined
Explain the origin of magnetism in material, hence find a magnetic moment of an electron revolving around the nucleus of an atom.
Concept: undefined >> undefined
What is the relation between average current and rms current over half cycle?
Concept: undefined >> undefined
State the average or mean value of an alternating emf? Obtain the expression for it.
Concept: undefined >> undefined
