Explanation

Copper has the highest thermal conductivity (386 K m-1 K-1)

Copper has high thermal conductivity.

AGM 25-12-2022

Explanation

The hypocenter is the point inside the Earth where the rocks break, causing an earthquake.

The point directly above the hypocenter on the surface is called the epicenter.

Explanation

Outer planets like Jupiter, Saturn, Uranus, and Neptune are called gas giants.

They are mostly composed of hydrogen and helium gases, with no solid surface.

Explanation

Geostationary satellites orbit directly above the equator to match Earth's rotation and appear stationary.

This position ensures constant coverage of the same Earth area, ideal for communication and weather monitoring.

Explanation

In the temperate zone, the sun’s rays fall at a slant angle, not directly overhead.

This results in milder temperatures compared to the tropical zone.

Explanation

The area of a circular sector is given by the formula:

Area = (1/2) × r² × θ

where r is the radius and θ is the angle in radians.

This formula applies only when θ is in radians.

Explanation

Temperature increases or decreases the kinetic energy of particles, leading to melting, boiling, or freezing.

Pressure affects the arrangement of particles, especially in gases, influencing condensation or compression.

Explanation

In a compound microscope, the final image is typically virtual and inverted.

The objective lens forms a real, inverted image, which is then magnified by the eyepiece, resulting in a virtual and inverted image seen by the observer.

Explanation

When an object is placed between F (focus) and 2F in a convex lens, the image is formed beyond 2F.

The image is real, inverted, and magnified because light rays converge beyond twice the focal length.

Explanation

The Magellanic Clouds (Large and Small) are irregular galaxies near the Milky Way.

They lack a definite shape.

They are satellite galaxies of the Milky Way.