Explanation

Explanation

A die has 6 equally likely outcomes: 1, 2, 3, 4, 5, 6.

The odd numbers are 1, 3, and 5, so there are 3 favorable outcomes.

Probability = Favorable outcomes ÷ Total outcomes = 3/6 = 1/2.

Last verified on 03-07-2026

Explanation

• The Nobel Peace Prize is awarded every year on 10 December in Oslo, Norway.
• The ceremony is held at Oslo City Hall.
• 10 December marks the anniversary of the death of Alfred Nobel in 1896.
• The Peace Prize is the only Nobel Prize awarded in Norway.
• Physics, Chemistry, Literature, Physiology or Medicine Prizes: Stockholm, Sweden

Last verified on 03-07-2026

Explanation

• When a moving car suddenly stops, the passenger's body tends to keep moving forward due to inertia of motion.
• This is explained by Newton's First Law of Motion.
• Only the car stops immediately; the passenger's body continues moving forward until restrained.
• Wearing a seat belt helps prevent injury by stopping the body safely.

Last verified on 03-07-2026

Explanation

• SQR stands for Structured Query Reporter.
• It is a report-writing and programming language used to generate reports from databases.
• SQR is commonly associated with Oracle/PeopleSoft applications.
• It supports SQL queries, calculations, formatting, and report generation.

Additional information:

• SQL – Structured Query Language
• DBMS – Database Management System
• RDBMS – Relational Database Management System
• DDL – Data Definition Language

Last verified on 26-04-2026

Explanation

• Sir James Chadwick discovered the neutron in 1932.
• He was a British physicist.
• His discovery completed the basic picture of the atomic nucleus.
• He received the Nobel Prize in Physics in 1935 for this discovery.

Additional information:

• J. J. Thomson – Electron (1897)
• Ernest Rutherford – Atomic nucleus (1911) and Proton (1917)

Last verified on 03-07-2026

Explanation

• Weber (Wb) is the SI unit of magnetic flux.
• One Weber is equal to one volt-second (V·s).
• A magnetic flux density of 1 Weber per square metre (1 Wb/m²) is equal to 1 Tesla (T).
• Magnetic flux measures the total magnetic field passing through a surface.

Last verified on 03-07-2026

Explanation

• Tin (Sn) is not a semiconductor.
• Tin is a metal and a good conductor of electricity.
• Silicon (Si), Germanium (Ge), and Selenium (Se) are well-known semiconductors.
• Semiconductors have electrical conductivity between conductors and insulators.

Last verified on 03-07-2026

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

• Sound cannot travel through a vacuum because there are no particles to carry sound vibrations.
• Sound needs a medium such as a solid, liquid, or gas to travel.
• Since space is nearly a vacuum, sound cannot be heard there.
• The speed of sound in a vacuum is 0 m/s.

Additional information:

• Infrasound: Below 20 Hz
• Audible sound: 20 Hz – 20,000 Hz (20 kHz)
• Ultrasound: Above 20 kHz
• Speed of sound in air: 343 m/s
• Speed of sound in water: 1,481 m/s

Last verified on 07-06-2026