Why did the passenger lean forward? When a sudden brake is applied in a moving bus the passengers lean forward because of the inertia of motion. When a bus is in motion, the passenger of the bus is also at the same speed as the bus. When the bus stops suddenly, the lower part of … Read more
Explain why the velocity of sound is uniform? The velocity of sound is a good example of a natural phenomenon in the case of uniform velocity. Sound travels in a defined direction over equal distances in equal intervals of time and it is 332 ms⁻¹ in the air at 0°C. Sound travels in a definite … Read more
In universe every rest and speed is relative. No rest or no motion is absolute- Explain it with example. Actually whether an object is at rest or not depends on the reference object. If the reference frame is actually in rest, the object will be actually in rest with respect to that frame. This type … Read more
No rest or no motion is absolute- Explain it. Actually whether an object is at rest or not depends on the reference object. If the reference frame is actually in rest, the object will be actually in rest with respect to that frame. This type of rest is called absolute rest. A body is said … Read more
How mirror can be identified by observing the values of the magnification? If an object is placed within the focal length of a mirror, the image of the object will get magnified in case of a concave mirror, and will get diminished in case of a convex mirror. The value of magnification will be greater … Read more
Explain weak nuclear force The short-range and small magnitude force that exists between the fundamental particles within the nucleus is called weak nuclear force. Due to this force, the nucleus becomes unstable and beta decay occurs. Most of the radioactive disintegration occurs due to weak nuclear force. The range of this force is less than … Read more
Define unbalanced force When two or more forces acting on an object produce resultant force, i.e. the object has acceleration; we say that the forces are unbalanced. The forces that produce this unbalanced condition are called unbalanced forces.
Why do we use an electric fuse? Electric fuse is used to stop the sudden large flow of electricity. In the case of fuse connection, current passes through a thin wire before entering the equipment. When a large amount of current flows through this thin wire, the fuse becomes heated and burns, as a result, … Read more