Explanation

The primary cause of seasons on Earth is the 23.5-degree tilt of its axis.

It affects the amount of sunlight different regions receive throughout the year as the Earth orbits the Sun, creating seasonal changes.

Explanation

If the temperature of the cold reservoir is 12°C and the temperature of the hot reservoir is 27°C, then the efficiency of the Carnot engine is: 5%.

Explanation

Explanation

For measuring small resistance, we use the Kelvin Bridge.

This bridge is designed to provide accurate measurements of very low resistances by compensating for the resistance of the measuring leads.

Explanation

If the lift is accelerated downward, the apparent weight experienced by an object inside the lift is m(g−a).

Explanation

The conductivities of semiconductors range from 10^-2 to 10^-5 ohm^-1 m^-1.

Explanation

If an electron transitions from n=6 to n=7, the percentage increase in radius is approximately 33%.

Explanation

In Young's double-slit experiment, the central maximum or the center of the interference pattern is always bright.

Explanation

Explanation