Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A metallic circular disc having a circular hole at its centre rotates about an axis passing through its centre and perpendicular to its plane. When the disc is heated:
03
Oct
A metallic circular disc having a circular hole at its centre rotates about an axis passing through its centre and perpendicular to its plane. When the disc is heated: A metallic circular disc having a circular hole at its centre rotates about an axis passing through its centre and perpendicular to its plane. When the [...]
Equal volumes of water and alcohol when put in similar calorimeters take 100 sec and 74 sec respecively to cool from 50∘C to 40∘C. The thermal capacity of each calorimeter in numerically equal to the volume of either liquid. The specific gravity of alcohol is 0.8 if the specific heat capacity of water is 1 cal/gm, the specific heat capcity of alcohol will
03
Oct
Equal volumes of water and alcohol when put in similar calorimeters take 100 sec and 74 sec respecively to cool from 50∘C to 40∘C. The thermal capacity of each calorimeter in numerically equal to the volume of either liquid. The specific gravity of alcohol is 0.8 if the specific heat capacity of water is 1 [...]
A pices of metal weighs 46 g air. When it is immersed in a liquid of specific gravity 1.24 at 27∘C, it weighs 30g. When the temperature si raised to 42∘C, the metal piece weighs 30.5 g. If the specific gravity of the liquid at 42∘C is 1.20, the coefficient of linear expansion of the metal is
03
Oct
A pices of metal weighs 46 g air. When it is immersed in a liquid of specific gravity 1.24 at 27∘C, it weighs 30g. When the temperature si raised to 42∘C, the metal piece weighs 30.5 g. If the specific gravity of the liquid at 42∘C is 1.20, the coefficient of linear expansion of the [...]
Tags:
A pices of metal weighs 46 g air. When it is immersed in a liquid of specific gravity 1.24 at 27∘C ,
it weighs 30g. When the temperature si raised to 42∘C ,
the coefficient of linear expansion of the metal is ,
the metal piece weighs 30.5 g. If the specific gravity of the liquid at 42∘C is 1.20 ,
A steel scale measures the length of a copper wire as 80.0 cm when both area at 20∘C (the calibration temperature for scale). What would be the scale read for the length of the wire when both are at 40∘C? (Given α steel = 11×10^−6 per∘C and α copper= 17 × 10^−6 per∘C)
03
Oct
A steel scale measures the length of a copper wire as 80.0 cm when both area at 20∘C (the calibration temperature for scale). What would be the scale read for the length of the wire when both are at 40∘C? (Given α steel = 11×10^−6 per∘C and α copper= 17 × 10^−6 per∘C) A solids [...]
A glass flask of volume one litre at 0∘C is filled, level full of mercury at this temperature. The flask and mercury are now heated to 100∘C. How much mercury will spill out if coefficient of volume expansion of mercury is 1.82 × 10^−4/∘C and linear expansion of glass is 0.1 × 10^−4/∘C respectively?
03
Oct
A glass flask of volume one litre at 0∘C is filled, level full of mercury at this temperature. The flask and mercury are now heated to 100∘C. How much mercury will spill out if coefficient of volume expansion of mercury is 1.82 × 10^−4/∘C and linear expansion of glass is 0.1 × 10^−4/∘C respectively? A [...]
If on heating liquid through 80 degree C, the mass expelled is ( 1/100)th of mass still remaining, the coefficient of apparent expansion of liquid is
03
Oct
If on heating liquid through 80 degree C, the mass expelled is ( 1/100)th of mass still remaining, the coefficient of apparent expansion of liquid is If on heating liquid through 80 degree C the coefficient of apparent expansion of liquid is the mass expelled is ( 1/100)th of mass still remaining October 3, 2020 [...]
Two wires A and B of the same cross sectional areas. Young’s moduli Y1 and Y2 and coefficients of linear expansion α1 and α2 respectively are joined together and fixed between rigid supports at either ends. The tension in the compound wire when wire A is heated and wire B is cooled at different temperature is same when wire A alone is cooled at the same temperature as wire B earlier. Find correct oprtion.
03
Oct
Two wires A and B of the same cross sectional areas. Young’s moduli Y1 and Y2 and coefficients of linear expansion α1 and α2 respectively are joined together and fixed between rigid supports at either ends. The tension in the compound wire when wire A is heated and wire B is cooled at different temperature [...]
A uniform metal rod is used as a bar pendulum. If the room temperature rises by 10 degree C, and the coefficient of linear expansion of the meetal of the rod is 2 x 10^-6 per degree C, the period of the pendulum will have percentage increases of
03
Oct
A uniform metal rod is used as a bar pendulum. If the room temperature rises by 10 degree C, and the coefficient of linear expansion of the meetal of the rod is 2 x 10^-6 per degree C, the period of the pendulum will have percentage increases of A uniform metal rod is used as [...]
A solids floats submerged in a liquid. when the liquid is heated, which of the following is most likely to happen?
03
Oct
A solids floats submerged in a liquid. when the liquid is heated, which of the following is most likely to happen? A solids floats submerged in a liquid. when the liquid is heated which of the following is most likely to happen? October 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
If the length of a cylinder on heating increases by 2 %, the area of its base will increase by
03
Oct
If the length of a cylinder on heating increases by 2 %, the area of its base will increase by If the length of a cylinder on heating increases by 2 % the area of its base will increase by October 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,