Physics-
General
Easy

Question

In the figure shown, the heavy cylinder (radius R) resting on a smooth surface separates two liquids of densities 2 rho and 3 rho. The height ‘h’ for the equilibrium of cylinder must be

  1. 3R/2    
  2. R square root of fraction numerator 3 over denominator 2 end fraction end root    
  3. R square root of 2    
  4. None    

The correct answer is: R square root of fraction numerator 3 over denominator 2 end fraction end root

Related Questions to study

General
physics-

A liquid of mass 1 kg is filled in a flask as shown in figure. The force exerted by the flask on the liquid is (g = 10 m/s2) [Neglect atmospheric pressure]

A liquid of mass 1 kg is filled in a flask as shown in figure. The force exerted by the flask on the liquid is (g = 10 m/s2) [Neglect atmospheric pressure]

physics-General
General
physics-

Figure shows a there arm tube in which a liquid is filled upto levels of height l. It is now rotated at an angular frequency omega about an axis passing through arm B. The angular frequency w at which level of liquid in arm B becomes zero

Figure shows a there arm tube in which a liquid is filled upto levels of height l. It is now rotated at an angular frequency omega about an axis passing through arm B. The angular frequency w at which level of liquid in arm B becomes zero

physics-General
General
physics-

A fluid container is containing a liquid of density rho is accelerating upward with acceleration an along the inclined place of inclination alpha as shown. Then the angle of inclination theta of free surface is

A fluid container is containing a liquid of density rho is accelerating upward with acceleration an along the inclined place of inclination alpha as shown. Then the angle of inclination theta of free surface is

physics-General
parallel
General
physics-

The area of cross-section of the wider tube shown in figure is 800 cm2 If a mass of 12 kg is placed on the massless piston, the difference in heights h in the level of water in the two tubes is :

The area of cross-section of the wider tube shown in figure is 800 cm2 If a mass of 12 kg is placed on the massless piston, the difference in heights h in the level of water in the two tubes is :

physics-General
General
physics-

A cone of radius R and height H is hanging inside a liquid of density rho by means of a string as shown in the figure. The force, due to the liquid acting on the slant surface of the cone is

A cone of radius R and height H is hanging inside a liquid of density rho by means of a string as shown in the figure. The force, due to the liquid acting on the slant surface of the cone is

physics-General
General
physics-

The figure shows a radiant energy spectrum graph for a black body at a temperature T. Identify the graph which correctly represents the spectral intensity versus wavelength graph at two temperatures T' and T (T < T')

The figure shows a radiant energy spectrum graph for a black body at a temperature T. Identify the graph which correctly represents the spectral intensity versus wavelength graph at two temperatures T' and T (T < T')

physics-General
parallel
General
physics-

The figure shows a radiant energy spectrum graph for a black body at a temperature T. If the temperature of the body is raised to a higher temperature T', then choose the correct statement(s)

The figure shows a radiant energy spectrum graph for a black body at a temperature T. If the temperature of the body is raised to a higher temperature T', then choose the correct statement(s)

physics-General
General
physics-

The figure shows a radiant energy spectrum graph for a black body at a temperature T. Choose the correct statement(s)

The figure shows a radiant energy spectrum graph for a black body at a temperature T. Choose the correct statement(s)

physics-General
General
physics-

An experiment is perfomed to measure the specific heat of copper. A lump of copper is heated in an oven, then dropped into a beaker of water. To calculate the specific heat of copper, the experimenter must know or measure the value of all of the quantities below EXCEPT the

An experiment is perfomed to measure the specific heat of copper. A lump of copper is heated in an oven, then dropped into a beaker of water. To calculate the specific heat of copper, the experimenter must know or measure the value of all of the quantities below EXCEPT the

physics-General
parallel
General
physics-

The intensity of radiation emitted by the Sun has its maximum value at a wavelength of 510 nm and that emitted by the North Star has the maximum value at 350 nm. If these stars behave like black bodies then the ratio of the surface temperature of the Sun and the North Star is

The intensity of radiation emitted by the Sun has its maximum value at a wavelength of 510 nm and that emitted by the North Star has the maximum value at 350 nm. If these stars behave like black bodies then the ratio of the surface temperature of the Sun and the North Star is

physics-General
General
physics-

The spectral emissive power E lambda for a body at temperature T1 is plotted against the wavelength and area under the curve is found to be A. At a different temperature T2 the area is found to be 9A. Then lambda subscript 1 end subscript divided by lambda subscript 2 end subscript =

The spectral emissive power E lambda for a body at temperature T1 is plotted against the wavelength and area under the curve is found to be A. At a different temperature T2 the area is found to be 9A. Then lambda subscript 1 end subscript divided by lambda subscript 2 end subscript =

physics-General
General
physics-

A composite rod made of three rods of equal length and cross-section as shown in the fig. The thermal conductivities of the materials of the rods are K/2, 5K and K respectively. The end A and end B are at constant temperatures. All heat entering the face A goes out of the end B there being no loss of heat from the sides of the bar. The effective thermal conductivity of the bar is

A composite rod made of three rods of equal length and cross-section as shown in the fig. The thermal conductivities of the materials of the rods are K/2, 5K and K respectively. The end A and end B are at constant temperatures. All heat entering the face A goes out of the end B there being no loss of heat from the sides of the bar. The effective thermal conductivity of the bar is

physics-General
parallel
General
physics-

The ratio of the thermal resistance of the rod is

The ratio of the thermal resistance of the rod is

physics-General
General
physics-

Two rods A and B of different materials but same cross section are joined as in figure. The free end of A is maintained at 100°C and the free end of B is maintained at 0°C.text  If  end text l subscript 2 end subscript equals 2 l subscript 1 end subscript comma K subscript 1 end subscript equals 2 K subscript 2 end subscript and rods are thermally insulated from sides to prevent heat losses then the temperature q of the junction of the two rods is

Two rods A and B of different materials but same cross section are joined as in figure. The free end of A is maintained at 100°C and the free end of B is maintained at 0°C.text  If  end text l subscript 2 end subscript equals 2 l subscript 1 end subscript comma K subscript 1 end subscript equals 2 K subscript 2 end subscript and rods are thermally insulated from sides to prevent heat losses then the temperature q of the junction of the two rods is

physics-General
General
physics-

The temperature drop through each layer of a two layer furnace wall is shown in figure. Assume that the external temperature T1 and T3 are maintained constant and T1 > T3. If the thickness of the layers x1 and x2 are the same, which of the following statements are correct

The temperature drop through each layer of a two layer furnace wall is shown in figure. Assume that the external temperature T1 and T3 are maintained constant and T1 > T3. If the thickness of the layers x1 and x2 are the same, which of the following statements are correct

physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.