Physics-
General
Easy
Question
What is the length of the image of the rod in mirror, according to the observer in air? (The refractive index of liquid is m.)
- none
The correct answer is:
Related Questions to study
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A man looks down on a fish of length 20 cm. His eye is 2 m above the surface of the water (m = 4/3) and the fish is 2 m below the surface as shown in the figure. The ratio of angular width 
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A man looks down on a fish of length 20 cm. His eye is 2 m above the surface of the water (m = 4/3) and the fish is 2 m below the surface as shown in the figure. The ratio of angular width of the fish as seen by the man in presence of water to the in the absence of water is
Physics-General
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The reflecting surface is represented by the equation 
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Physics-General
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The rectangular box is the place of a spherical mirror. The point S is the position of an object and the point I is the position of its image. The height of the point S from the axis is two times that of point I. The horizontal separation between S and I is equal to 15 cm.
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Physics-General
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A given mass of a gas expands from the state A to the state B by three paths 1, 2 and 3 as shown in V-T indicator diagram. If 
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Physics-General
Physics-
A point-like object of mass 2.0 kg moves along the x-axis with a velocity of + 4.0 m/s. A net horizontal force acting along the x-axis is applied to the object with the force-time profile shown. What is the total work that was done by the force?
A point-like object of mass 2.0 kg moves along the x-axis with a velocity of + 4.0 m/s. A net horizontal force acting along the x-axis is applied to the object with the force-time profile shown. What is the total work that was done by the force?
Physics-General
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Consider the cyclic process ABCA shown in figure, performed on a sample of 1 mole of an ideal gas. A total of 1000 J of heat is withdrawn from the sample in the process, the work done on the gas during part BC is 1830 J, the value of 
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Physics-General
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A rubber ball bounces on the ground as shown. After each bounce, the ball reaches one-half the highest of the bounce before it. If the time the ball was in the air between the first and second bounce was 1 second, what would be the time between the second and third bounce?
A rubber ball bounces on the ground as shown. After each bounce, the ball reaches one-half the highest of the bounce before it. If the time the ball was in the air between the first and second bounce was 1 second, what would be the time between the second and third bounce?
Physics-General
Physics-
A particle with mass 2 kg moves in one dimension, in the presence of a force that is described by the following potential energy graph. In parts (a)-(c), specify your numerical answers to 2 significant figure accuracy.
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Physics-General
Physics-
Moment of inertia of a thin uniform semicircular wire having mass M, radius R and centre C about an axis passing through point O and perpendicular to its plane is
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Physics-General
Physics-
A uniform rod having length L, is made of material having density 
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A uniform rod having length L, is made of material having density , coefficient of thermal expansion a and young's modulus Y. It is placed between two vertical walls having separation L and coefficient of friction . What is the minimum rise in temperature so that the rod does not falls down on releasing.
Physics-General
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A monatomic ideal gas is used as the working substance for the Carnot cycle shown in the figure. Processes AB and CD are isothermal, while processes BC and DA are adiabatic. During process AB, 400 J of work is done by the gas on the surroundings. How much heat is expelled by the gas during process CD?
A monatomic ideal gas is used as the working substance for the Carnot cycle shown in the figure. Processes AB and CD are isothermal, while processes BC and DA are adiabatic. During process AB, 400 J of work is done by the gas on the surroundings. How much heat is expelled by the gas during process CD?
Physics-General
Physics-
A ball rolls through a hollow fixed semicircular tube lying flat on a horizontal tabletop. Which diagram best shows the path of the ball after emerging from the tube, as viewed from above?
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Physics-General
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A mass on the end of a spring oscillates with the displacement versus time graph shown to the right. Which of the following statements about its motion is CORRECT?
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Physics-General
Physics-
A tube is open at both ends with the air oscillating in the 4th harmonic. How many displacement nodes are located within the tube?
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Physics-General
Chemistry-
Heat of reaction at constant volume is measured in the apparatus:
Heat of reaction at constant volume is measured in the apparatus:
Chemistry-General
