A ball is thrown vertically downwards from a height of 20 m with an initially velocity v₀. It collides with the ground, loses 50 percent of its energy in collision and rebunds to the same […]
4.0 g of a gas occupies 22.4 litres at NTP. The specific heat capacity of the gas at constant volume is 5.0 JK⁻¹ mol⁻¹. If the speed of sound in this gas at NTP is […]
If dimensions of critical velocity of a liquid flowing through a tube are expressed ad npr, where n,p and r are the coefficient of viscosity of liquid, density of liquid and radius of the tube […]
If in a p-n junction, a square input signal of 10 V is applied as shown, then the output across Rʟ will be
Options
(a)
(b)
(c)
(d)
Correct […]
Which logic gate is represented by the following combination of logic gate?
Options
(a) NAND (b) AND (c) NOR (d) OR
Correct Answer:
AND
Explanation:
No explanation available. Be the first to write […]
A conducting square frame of side ‘a’ and a long straight wire carrying current I are located in the same plane as shown in the figure. The frame moves to the right with a constant […]
The electric field in a certain region is acting radially outward and is given by E=Ar. A change contained in a sphere of radius ‘a’ centred at the origin of the field, will be given […]
The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone of an organ pipe open at both the ends. The length of organ pipe open at both […]
A particle is executing SHM along a straight line. Its velocities at distances x₁ and x₂ from the mean position are V₁ and V₂ respectively. Its time period is
Options
(a) 2π√x₂²-x₁²/V₁²-V₂² (b) […]
When two displacements represented by y₁=a sin(?t) are superimposed the motion is
Options
(a) simple harmonic with amplitude a/b (b) simple harmonic with amplitude√a²+b² (c) simple harmonic with amplitude(a+b)/2 (d) not a simple […]
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