physics

Which one of the following is a vector quantity?

A. Temperature gradient B. Mass C. Work D. Time Correct Answer: Option A - Temperature gradient Explanation Temperature gradient(Tg) =…

5 years ago

The eyeball consists of a round tough white skin called?

A. Sclerotic B. Choroid coal C. Optical fiber D. Accommodation Correct Answer: Option A - Sclerotic Explanation Sclerotic coat (sclera)…

5 years ago

Which of the following option is right if an object fall freely to the ground?

1. The total energy is Kinetic 2. The ratio of potential energy to kinetic energy is constant 3. The sum…

5 years ago

The net movement of solvent molecules from a region of high solvent potential to a region of lower solvent potential through a partially or semi permeable membrane is refer to as?

A. Diffusion B. Osmosis C. Surface tension D. Cohesion Correct Answer: Option B - Osmosis Explanation Diffusion: The movement of…

5 years ago

A regular spacing or arrangement of atoms in a crystalline material is called?

A. Orbit B. Lattice C. Atomic structure D. Energy level Correct Answer: Option B - Lattice Explanation The regular arrangement…

5 years ago

Heat transfer by convection will take place is one the following substance?

A. Stone B. Wood C. Mercury D. Water Correct Answer: Option D - Water Explanation Convection take place commonly in…

5 years ago

The r.m.s value of a supply voltage is quoted at 200v. What is the approximate peak value of the voltage?

A. 200volts B. 300volts C. 283volts D. 250volts Correct Answer: Option C - 283volts Explanation Vr.m.s = V0 ÷ V2,…

5 years ago

A good electric cell should have the following except?

A. A minimum of polarization effect B. A long life C. A cheap and safe electrolytes D. Cost and dangerous…

5 years ago

What is the S.I unit of relative density?

A. kg m−² B. kg m² C. kg cm³ D. has no S.I unit Correct Answer: Option D - has…

5 years ago

Neutron were discovered by?

A. J.J. Thompson B. James Chadwick C. Michael faraday D. Dalton Correct Answer: Option B - James Chadwick Explanation Neutron…

5 years ago