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How roar of a lion can be differentiated from bucking of a

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Show that the total energy of a body executing SHN is independent of

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What is an ideal perfect

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Calculate the time taken by the light to pass through a nucleus of diameter `1.56 × 10^(-16)` m. (speed of light is `3× 10^8

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It is claimed that two cesium clocks, if allowed to run for 100 yrs without any disturbance may differ by only about `0.02 s`. Then the accuracy of the clock in measuring a time interval of `1s` is

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The slope of the straight line connecting the points corresponding to `(v_2, t_2) and (v_1,t_1)` on a plot of velocity versus time

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What will be the value of g at the bottom of sea 7 km deep? Diameter of the earth is 12800 km and gon the surface of the earth is `9.8

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Why longitudinal waves are called pressure

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Why do tuning forks have two

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Which of the following functions of time represent (a) simple harmonic motion and (b) periodic but not simple harmonic? Give the period for each case. (1) sin ωt – cos ωt (2) `sin^2

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A 5 kg collar is attached to a spring of spring constant 500 N `m^(–1)`. It slides without friction over a horizontal rod. The collar is displaced from its equilibrium position by 10.0 cm and released. Calculate (a) the period of oscillation, (b) the maximum speed and (c) maximum acceleration of the

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A transverse harmonic wave on a string is described by. y(x, t) = 3.0 sin (36 t + 0.018 x + π/4) where x and y are in cm and t in s. The positive direction of x is from left to right. (a) Is this a travelling wave or a stationary wave ? If it is travelling, what are the speed and direction of its propagation ? (b) What are its amplitude and frequency ? (c) What is the initial phase at the origin ? (d) What is the least distance between two successive crests in the wave

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A wire stretched between two rigid supports vibrates in its fundamental mode with a frequency of 45 Hz. The mass of the wire is `3.5 × 10^(–2)` kg and its linear mass density is `4.0 × 10^(–2)` kg `m^(–1)`. What is (a) the speed of a transverse wave on the string, and (b) the tension in the

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Projectile motion is a form of motion in which an object or particle is thrown with some initial velocity near the earth’s surface and it moves along a curved path under the action of gravity alone. The path followed by a projectile is called its trajectory, which is shown below. When a projectile is projected obliquely, then its trajectory is as shown in the figure below Here velocity `u` is resolved into two components, we get (a) `u cos theta` along `OX` and (b) `u sin theta` along `OY`.The example of such type of motion

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Projectile motion is a form of motion in which an object or particle is thrown with some initial velocity near the earth’s surface and it moves along a curved path under the action of gravity alone. The path followed by a projectile is called its trajectory, which is shown below. When a projectile is projected obliquely, then its trajectory is as shown in the figure below Here velocity `u` is resolved into two components, we get (a) `u cos theta` along `OX` and (b) `u sin theta` along `OY`.The vertical component of velocity at point H

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Assertion: A body is momentarily at rest but no force is acting on it at that time. Reason: When a force acts on a body, it may not have some

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A particle is in linear simple harmonic motion between two points, A and B, 10 cm apart. Take the direction from A to B as the positive direction and give the signs of velocity, acceleration and force on the particle when it is (a) at the end A, (b) at the end B, (c) at the mid-point of AB going towards A, (d) at 2 cm away from B going towards A, (e) at 3 cm away from A going towards B, and (f) at 4 cm away from B going towards

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A steel wire 0.72 m long has a mass of `5.0 ×10^(–3)` kg. If the wire is under a tension of 60 N, what is the speed of transverse waves on the wire

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State the number of significant figures in the following : (d) 6.320 J (e) `6.032 N m^(–2)` (f) `0.0006032

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Measure of two quantities along with the precision of respective measuring instrument is A = 2.5 m s–1 ± 0.5 m s–1 B = 0.10 s ± 0.01 s The value of A B will

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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