General Knowledge Questions

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.

Two particles with charges q1 and q2 are kept at a certain distance to exert force F on each other. If the distance is reduced to one-fifth, then the force between them is

X-Rays, which are now used on a day to day basis for diagnosis in medicine, was discovered by?

California - based private spaceflight company Space X has launched which secret mission for United States government?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.

A person operating at the pre-conventional level of moral reasoning (1)/ considers any decision or ethical dilemma from the point of view of avoiding (2)/ personal harm, losing or seek personal gain. (3)/ No error (4)

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P- They never desert us even when all fair weather friends have deserted us.
Q- Books are never failing friends.
R- They dispel the dark clouds of gloom from our minds and increase our happiness if we are already happy.
S- Through the ages, the scriptures and other great books have provided, immeasurable solace to the wounded and strife torn humanity.

In which of the following mentioned activities is the potential energy (P.E) converted into kinetic energy(K.E)?

Vernal Equinox occurs on