Explanation

• A step-up transformer increases the voltage.
• Output voltage > Input voltage
• It has more turns in the secondary coil than in the primary coil.
• It is used to increase voltage for long-distance power transmission.

Explanation

• A computer program that translates one program instruction at a time into machine language is called an Interpreter.
• Interpreters are commonly associated with languages such as Python, JavaScript, and BASIC.

Additional information:

• Compiler: Translates the complete program before execution.
• Assembler: Converts assembly language into machine code.
• Machine Language: Uses binary instructions understood directly by the computer.

Last verified on 10-08-2026

Explanation

• Comets are small celestial bodies mainly composed of ice, dust, and rocky material.
• They travel around the Sun in highly elliptical or elongated orbits.
• Halley’s Comet, which returns approximately every 76 years.

Additional information:

• Asteroids: Mainly rocky or metallic bodies.
• Meteoroids: Small pieces of rock or metal moving through space.

Last verified on 05-10-2026

Explanation

• Wilhelm Conrad Rontgen discovered X-rays
• He was discovered on 8 November 1895.
• He got the Nobel Prize in Physics in 1901.

Additional questions

• The penetrating power of X-rays depends on their frequency

Last updated 26-07-2026 by NA

Explanation

• In SONAR, the wavelength of the sound wave does not change simply because the submarine is farther away.
• Wavelength depends on the frequency of the sound and its speed in the medium, not on the distance traveled.

Additional information:

• SONAR: Sound Navigation and Ranging
• It uses sound waves to detect and locate underwater objects.

Last verified on 05-10-2026