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A block of mass 1kg is given a velocity of 5m/s on a horizontal flat surface. What will be the change in internal energy of the block-surface system,
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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The behavior of real gases approaches that of ideal gas in which of these following conditions?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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What is the ratio of densities of 2 gases, O2 & N2, having partial pressures in the ratio 2:3?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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Boyle’s law can be deduced from kinetic theory. True or False?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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What is the ratio of specific heats for a monatomic gas?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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In an SHM the time taken to go from mean position to A/2 is the same as that from A/2 to A. True or False? Here, A is the amplitude of motion.
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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What will happen to the time period of a simple pendulum if temperature of the surroundings is significantly increased?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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Damping force on a spring mass system is proportional to which of the following quantities?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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What is the ratio of speed of sound in air when measured after laplace correction to that measured by Newton’s formula?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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Consider the case of normal modes of vibration for the air column with only one end closed. What is the length of the air column for the fundamental harmonic?
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Oct 3, 2021
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Class-XI-PHYSICS
by
AdilsonLima
cbse
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Consider standing waves in an air column with one end closed. What is a pressure node?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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Laplace correction makes use of which of the following processes?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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y1 = 2sin(3x – 2t) & y2 = 3sin(3x – 2t + π/4). Find the expression for resultant displacement caused by superposition of the two waves.
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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Consider the phenomenon of beats & select the correct statement.
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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1
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In a standing wave the amplitude of a particle is fixed, but varies from particle to particle. True or False?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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A source moves towards a stationary observer with a speed of 10m/s. If the frequency of the source is 10Hz what will be the wavelength of sound heard by the observer? Speed of sound = 330m/s.
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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If a string wave encounters a completely fixed end, what happens to its phase?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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What is the minimum distance between a node & an antinode in a standing wave?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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1
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If a standing wave is vibrating in the fourth harmonic and the wavelength is λ, what is the length of the string.
asked
Oct 3, 2021
in
Class-XI-PHYSICS
by
AdilsonLima
cbse
0
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1
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Consider the case of normal modes of vibration for the air column with only one end closed. What is the length of the air column for the fundamental harmonic?
asked
Oct 3, 2021
in
Class-XI-PHYSICS
by
AdilsonLima
cbse
physics
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