A. Cholera
B. Typhoid
C. Tuberculosis
D. Small Pox
Correct Answer: D. Small Pox
Smallpox is an acute contagious disease caused by the variola virus, a member of the orthopoxvirus family. It was one of the most devastating diseases known to humanity and caused millions of deaths before it was eradicated. It is believed to have existed for at least 3000 years.
A. Liver
B. Pancreas
C. Spleen
D. Small Intestine
Correct Answer: A. Liver
Hepatitis is an inflammation of the liver. It may be caused by viral infection, alcohol consumption, several health conditions, or even some medications.
A. It is a metal
B. Its density is high
C. Ratio of stress to strain more
D. Ratio of stress to strain is less
Correct Answer: C. Ratio of stress to strain is more
Steel is more elastic than rubber because:
C. Ratio of stress to strain is more
Elasticity is characterized by the ratio of stress to strain, known as the Young’s modulus. Steel, being a material with a high Young’s modulus, has a higher ratio of stress to strain compared to rubber, which means it is more elastic. Rubber has a lower Young’s modulus and thus is less elastic.
A. Venus
B. Jupiter
C. Saturn
D. Pluto
Correct Answer: C. Saturn
For years, ringed planet Saturn was the planet with the most moons. But it was dethroned as the ‘moon king’ in February 2024 this year after astronomers discovered 12 new moons around gas giant Jupiter, which took its total tally of its moons to 95. But now, a team of space scientists led by the University of British Columbia has discovered 62 new moons of Saturn, taking the official tally to 145. The researchers said that by overtaking Jupiter, Saturn has also become the first planet to have over 100 discovered moons.
A. Alcohol Thermometer
B. Mercury Thermometer
C. Liquid Crystal Thermometer
D. Bimetallic Thermometer
Correct Answer: B. Mercury Thermometer
The most suitable thermometer for measuring the boiling point of water is a mercury thermometer. Mercury thermometers are commonly used for measuring temperatures within the range of –38°C to 356°C (-36°F to 672°F), making them ideal for measuring the boiling point of water, which is typically around 100°C (212°F) at standard atmospheric pressure. Mercury thermometers provide accurate and reliable readings within this temperature range
A. 50 million km
B. 150 million km
C. 100 million km
D. None of these
Correct Answer: B. 150 million km
The correct answer is B. 150 million km.
Light from the sun travels an average distance of about 150 million kilometers (93 million miles) to reach the Earth. This distance can vary slightly depending on the Earth’s position in its elliptical orbit around the sun, but on average, it’s about 150 million kilometers
A. 300 Million m/s
B. 300 Million m/h
C. 300 Million K/s
D. 300 Million k/h
Correct Answer: A. 300 Million m/s
The correct answer is A. 300 Million m/s. The speed of light in a vacuum is approximately 299,792,458 meters per second, often rounded to 300 million meters per second for simplicity. This value is a fundamental constant in physics and is denoted by the symbol “c”
A. 343 m/s
B. 230 m/s
C. 130 m/s
D. 430 m/s
Correct Answer: A. 343 m/s
The speed of sound in dry air at 20°C is approximately 343 meters per second (m/s). This value is affected by factors such as temperature, pressure, and humidity. In dry air at standard conditions, sound travels at this speed, which is commonly used as a reference value in physics and engineering calculations involving sound propagation
A. Noise
B. Sound
C. Echo
D. None of these
Correct Answer: C. Echo
The correct answer is C. Echo. When sound waves reflect off surfaces such as floors, ceilings, or walls and return to the listener’s ears after a brief delay, it creates an audible repetition of the original sound, known as an echo. Echoes occur due to the reflection of sound waves off solid surfaces, and they can alter the perception and quality of the original sound.
A. A lot of metal deposits on North and South Poles
B. Earth is Hug Magnet
C. Gravitational Field
D. Due to attraction of North Pole and Repulsion of Western Pole
Correct Answer: D. Due to attraction of North Pole and Repulsion of Western Pole
The correct answer is D. Due to the attraction of the North Pole and repulsion of the South Pole. This phenomenon is due to the Earth’s magnetic field, which has a north magnetic pole and a south magnetic pole. A magnet, if allowed to move freely, aligns itself with this magnetic field, with its north pole pointing towards the Earth’s geographic north pole and its south pole pointing towards the Earth’s geographic south pole. This behavior is because opposite magnetic poles attract each other, while like poles repel each other