Physics

A cylindrical tank is filled with water to a level of 3m. A hole is opened at a height

A cylindrical tank is filled with water to a level of 3m. A hole is opened at a height of…

If two soap bubbles of different radii are connected by a tube

If two soap bubbles of different radii are connected by a tube Options (a) Air flows from the bigger bubble…

Application of Bernoulli’s theorem can be seen in

Application of Bernoulli's theorem can be seen in Options (a) Dynamic lift of aeroplane (b) Hydraulic press (c) Helicopter (d)…

The temperature of a metal block is increased from 27⁰C to 84⁰C. The rate of radiated energy

The temperature of a metal block is increased from 27⁰C to 84⁰C. The rate of radiated energy from the block…

Radius of a soap bubble is increased from R to 2R. Work done in this process

Radius of a soap bubble is increased from R to 2R. Work done in this process in terms of surface…

Two bubbles A and B (A>B) are joined through a narrow tube. Then

Two bubbles A and B (A>B) are joined through a narrow tube. Then Options (a) The size of A will…

The earth radiates in the infrared region of the spectrum. The spectrum is correctly

The earth radiates in the infrared region of the spectrum. The spectrum is correctly given by Options (a) Wien's law…

Consider a compound slab consisting of two different materials having equal thickness

Consider a compound slab consisting of two different materials having equal thickness and thermal conductivities K and 2K respectively. The…

Young’s modulus of perfectly rigid body material is

Young's modulus of perfectly rigid body material is Options (a) Zero (b) Infinity (c) 1x10¹⁰ N/m² (d) 10x10¹⁰ N/m² Correct…

A wire of length 2 m is made from 10 cm³ of copper. A force F is applied so that

A wire of length 2 m is made from 10 cm³ of copper. A force F is applied so that…