Two metal wires of identical dimensions are connected in series. If σ₁ and σ₂ are
Two metal wires of identical dimensions are connected in series. If σ₁ and σ₂ are the conductivities of the metal…
7 years ago
Physics
The young’s modulus of steel is twice that of brass. Two wires of same length
The young's modulus of steel is twice that of brass. Two wires of same length and of same area of…
7 years ago
The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹. The fractional change in the density…
7 years ago
The heart of a man pumps 5 litres of blood through the arteries per minute at
The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150mm…
7 years ago
The energy of the em waves is of the order of 15 keV. To which part of the spectrum
The energy of the em waves is of the order of 15 keV. To which part of the spectrum does…
7 years ago
The cylindrical tube of a spray pump has radius R, one end of which has n fine holes,
The cylindrical tube of a spray pump has radius R, one end of which has n fine holes, each of…
7 years ago
The coefficient of performance of a refrigerator is 5. If the temperature inside
The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is -20⁰C, the temperature of the…
7 years ago
Point masses m₁ and m₂ are placed at the opposite ends of a rigid rod of length L,
Point masses m₁ and m₂ are placed at the opposite ends of a rigid rod of length L, and negligible…
7 years ago
On a frictionless surface, a block of mass M moving at speed v collides elastically
On a frictionless surface, a block of mass M moving at speed v collides elastically with another block of same…
7 years ago
Light of wavelength 500 nm is incident on a metal with work function 2.28 eV.
Light of wavelength 500 nm is incident on a metal with work function 2.28 eV. The de Broglie wavelength of…
7 years ago