Every Day Science MCQs with Explanations

Explanation

6 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

STEEL is most elastic among the rubber, steel, glass and sponge. Steel having the most steep linear stress-strain curve among all. A stiffer material will have a higher elastic modulus. Young’s Modulus alt. Modulus of Elasticity – is a measure of stiffness of an elastic material. Young’s modulus for steel- 200 GPa Young’smodulus for glass – 50–90 GPa Young’s modulus for rubber – 1 MPa Young’s modulus for sponge – 2–4 GPa A material with a higher Young’s modulus is more elastic.

Explanation

A pool of water appears to be less deep than it actually is because light rays from bottom of pool are bent away from the normal as they pass from water into the air. This makes the pool appear shallower than it really is. Because of the refraction of light. Refection of Light:Refraction is the bending of light as it passes from one transparent substance into another.Light refracts whenever it travels at an angle into substance with a different refractive index. Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media.

Explanation

50 km to 85 km is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Lycopene is the red pigment responsible for the color of tomatoes. The color of tomato turns to red from green during ripening. This red color of the fruit is provided by the carotenoid pigment lycopene that gives appearance to the fruit and one of the most important attribute of the tomato fruit.

Explanation

Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves. A vibrating string can create longitudinal waves as depicted in the animation below.

Explanation

A decrease in the rate of photosynthesis is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Convection is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Liquefied Petroleum Gas or LPG consists mainly of methane, propane, propylene, butane, and butylene in various mixtures. It is produced as a by-product of natural gas processing and petroleum refining. The components of LPG are gases at normal temperatures and pressures.