Explanation

Projectile motion plays a crucial role in the high jump, as the jumper's body follows a curved path after takeoff.

Speed and strength help generate the necessary force for a successful jump.

Explanation

Solar cells convert sunlight directly into electricity using the photovoltaic effect.

They are widely used in renewable energy systems due to their efficiency and sustainability.

Explanation

Explanation

Richer Scale is used for measuring Strength of an earthquake.

The intensity of earthquake is measured by Richter Scale.

Richter Scale was invented in 1935.

Explanation

 The moment of inertia of a solid sphere is (2/5)MR^2, where M is the mass and R is the radius.

This formula applies when the axis of rotation passes through the center of the sphere. 

Explanation

The formula to convert temperature from Celsius to Fahrenheit: T(°F) = 1.8T(°C) + 32

The formula to temperature convert Fahrenheit to Celsius: T(°C) = T(°F) - 32/1.8

Explanation

Laser amplification involves increasing light intensity through stimulated emission inside a resonant optical cavity.

The resonance causes photons to bounce back and forth, stimulating more emissions and amplifying the light.

Explanation

A vacuum flask is designed to minimize heat transfer by radiation, conduction, and convection to keep the contents hot or cold.

It uses a vacuum between two walls to prevent heat loss through conduction or convection, and its reflective surface helps reduce heat transfer by radiation.

Explanation

Core: Accounts for about 15% of Earth's total volume, composed mainly of iron and nickel alloys.

Mantle: Occupies 84% of Earth's volume.

Crust: Makes up 1% of Earth's volume.

Explanation

A plumb line is a tool used by masons to ensure a wall is perfectly vertical.

It consists of a string with a weight at the bottom, aligning with gravity to check vertical accuracy.