- AUniform Distribution
- BNormal Distribution
- CBinomial Distribution
- DPoisson Distribution
Time Taken:
Correct Answer:
Wrong Answer:
Percentage: %
Answer: a) 340 m/s
Explanation: The speed of sound in air at room temperature is approximately 340 meters per second.
Answer: a) Sound intensity is a measure of the amount of energy in a sound wave, while sound pressure is a measure of the force exerted by a sound wave on a surface.
Explanation: Sound intensity is a measure of the amount of energy that is carried by a sound wave per unit area, while sound pressure is a measure of the force exerted by the sound wave on a surface per unit area.
Answer: a) The speed of light is constant in all media.
Explanation: The speed of light is a fundamental constant of nature and is always the same in a vacuum, air, water, glass, or any other medium.
Answer: a) Red
Explanation: Red light has the longest wavelength of visible light, while violet light has the shortest.
Answer: d) Change in speed
Explanation: Refraction is the bending of light as it passes through a medium with a different density, which causes a change in its speed.
Answer: b) Concave lens
Explanation: A concave lens is thinner at the center and thicker at the edges, which causes light rays to diverge. This helps to correct the focus of the eye in people who are nearsighted.
Answer: d) Yellow
Explanation: The primary colors of light are red, green, and blue. Yellow is a secondary color that is produced by combining red and green light.