Explanation

Explanation

The odd one out is 'Diameter' because it is a geometric concept.

While the other options (Lactometer, Barometer, Thermometer) are instruments used to measure specific physical properties.

Explanation

Ernest Rutherford, a British physicist probed atoms with alpha particles.

He was known as the “father of nuclear physics”.

He was awarded the Nobel prize for his contribution to the structure of the atom in 1908.

Explanation

Explanation

Without sunlight, there would be no scattering of light by the Earth's atmosphere.

This means that no scattered light would reach our eyes, and the sky would appear black.

Explanation

Friction can be reduced by changing from sliding to rolling.

Replace sliding friction with rolling element friction.

Such as with the use of rolling element bearings.

Explanation

• Venus, often called the "Evening Star" or "Morning Star," appears in the western sky after sunset.
• Venus is the brightest planet.
• It has an atmosphere but no moons.
• It's identical in size, chemistry and gravity.
• It has volcanoes, mountains and sand.
• It's also called Sister Planet of the Earth.

Explanation

Celestial bodies that do not have their own heat and light are known as planets. Planets are lit by the light of stars, such as our sun.

Stars: Celestial bodies that emit their own light.

Asteroids: Tiny bodies that move around the sun, found between the orbits of Mars and Jupiter.

Comets: Bodies in space that are seen by reflected light.

Explanation

White clothes reflect most of the sunlight, which helps keep the body cooler compared to darker clothes, which absorb more heat.

Explanation

Rubber gloves are used by electricians because rubber is an insulator (a bad conductor of electricity).

This property prevents electric current from passing through their hands and protects them from electric shocks while handling live wires.