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A small object of uniform density rolls up a curved surface with an initial velocity v′. It reaches up to a maximum height of 4g/3v^2 with respect to the initial position. The object is
16
Sep
A small object of uniform density rolls up a curved surface with an initial velocity v′. It reaches up to a maximum height of 4g/3v^2 with respect to the initial position. The object is A small object of uniform density rolls up a curved surface with an initial velocity v′. It reaches up to a [...]
The ratio of the acceleration for a solid sphere (mass ′m′ and radius ′R′) rolling down an incline of angle ‘θ’ without slipping and slipping down the incline without rolling is.
16
Sep
The ratio of the acceleration for a solid sphere (mass ′m′ and radius ′R′) rolling down an incline of angle ‘θ’ without slipping and slipping down the incline without rolling is. The ratio of the acceleration for a solid sphere (mass ′m′ and radius ′R′) rolling down an incline of angle 'θ' without slipping and [...]
A disc and a solid sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ?
16
Sep
A disc and a solid sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ? A disc and a solid sphere of same radius but different masses roll off on two [...]
An ideal Carnot’s engine whose efficiency 40% receives heat of 500 K. If its efficiency is 50% then the intake temperature for the same exhaust temperature is
16
Sep
An ideal Carnot’s engine whose efficiency 40% receives heat of 500 K. If its efficiency is 50% then the intake temperature for the same exhaust temperature is An ideal Carnot's engine whose efficiency 40% receives heat of 500 K. If its efficiency is 50% then the intake temperature for the same exhaust temperature is September [...]
The efficiency of a Carnot engine operating between temperature of 100 degree C and − 23 degree C will be :
16
Sep
The efficiency of a Carnot engine operating between temperature of 100 degree C and − 23 degree C will be : The efficiency of a Carnot engine operating between temperature of 100 degree C and − 23 degree C will be : September 16, 2020 Category: Chapter 18 - Thermodynamics , NEET Last 32 Years [...]
An engine takes heat from a reservoir and converts its 1/6 part into work. By decreasing temperature of sink by 62 degree C, its efficiency becomes double. The temperatures of source and sink must be
16
Sep
An engine takes heat from a reservoir and converts its 1/6 part into work. By decreasing temperature of sink by 62 degree C, its efficiency becomes double. The temperatures of source and sink must be An engine takes heat from a reservoir and converts its 1/6 part into work. By decreasing temperature of sink by [...]
The temperatures of source and sink of a heat engine are 127 degree and 27 degree respectively. An inventor clams its efficiency to be 26%, then,
16
Sep
The temperatures of source and sink of a heat engine are 127 degree and 27 degree respectively. An inventor clams its efficiency to be 26%, then, The temperatures of source and sink of a heat engine are 127 degree and 27 degree respectively. An inventor clams its efficiency to be 26% then September 16, 2020 [...]
We consider the radiation emitted by the human body. Which of the following statements is true ?
16
Sep
We consider the radiation emitted by the human body. Which of the following statements is true ? We consider the radiation emitted by the human body. Which of the following statements is true ? September 16, 2020 Category: Chapter 17 - Thermal Properties of Matter , NEET Last 32 Years Solved 1988 - 2019 Physics [...]
If λm denotes the wavelength at which the radioactive emission from a black body at a temperature T K is maximum, then:
16
Sep
If λm denotes the wavelength at which the radioactive emission from a black body at a temperature T K is maximum, then: If λm denotes the wavelength at which the radioactive emission from a black body at a temperature T K is maximum then September 16, 2020 Category: Chapter 17 - Thermal Properties of Matter [...]
You are given vectors A = 5i – 6.5j and B = 10i – 7j. A third vector C lies in the x-y plane. Vector C is perpendicular to vector A and the scalar product of C with B is 15
16
Sep
You are given vectors A = 5i – 6.5j and B = 10i – 7j. A third vector C lies in the x-y plane. Vector C is perpendicular to vector A and the scalar product of C with B is 15 You are given vectors A = 5i - 6.5j and B = 10i - [...]