Explanation

• A geostationary satellite orbits the Earth at a speed that matches the Earth's rotation.
• It staying fixed above the same point on the Earth's surface.
• This allows it to maintain a constant position relative to the Earth.

Last verified on 03-07-2026

Explanation

Radiation transfers heat through electromagnetic waves and does not require a medium.

For example, the Sun's heat reaches Earth through radiation.

Explanation

Refraction is the bending of light as it passes from one medium to another (e.g., air to water).

This occurs due to a change in the speed of light in different media.

Explanation

- A voltmeter measures the potential difference (voltage) between two points in a circuit.  

- It is always connected in parallel to the component.  

- The SI unit of potential difference is the Volt (V).  

- Potential difference is the work done per unit charge to move a charge between two points.  

  - Formula: V = W / Q  

    - V = potential difference (volts)  

    - W = work done (joules)  

    - Q = charge (coulombs)  

- A voltmeter has high resistance so it doesn't draw current from the circuit.

Explanation

The Indus River Valley Civilization, 3300-1300 BCE.

It is also known as the Harappan Civilization.

It extended from modern-day northeast Afghanistan to Pakistan and northwest India.

Explanation

A square has all four sides equal in length.

So, knowing the length of one side is enough to draw the entire shape.

Explanation

Scholar sheets are often used in crafts due to their smooth texture and flexibility, making them suitable for flower making.

They are easy to cut, fold, and shape into petals and floral designs.

Explanation

A color palette is a flat surface used by artists to mix and hold paints while working.

It is an essential tool in painting for organizing and blending colors efficiently.

Explanation

Gears work on the principle of transmitting rotational force from one gear to another.

This helps in changing the speed, direction, or torque in a mechanical system.

Explanation

Conduction is the process through which heat is transferred from the hotter to the colder area of a conductor, like a metal rod.

It occurs when particles in the hot region collide with particles in the cooler region, transferring energy.