GATE Questions

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Convex mirror is used as rear view mirror in vehicles. Because the image is smaller, more image can fit onto the mirror, so a convex mirror provides for a larger field of view than a plane mirror. This is why they are useful.

Ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms. Atoms are more stable when they have full valence shells.

The ionization energy decreases from top to bottom in groups, and increases from left to right across a period.

HGence, in this trend Francium (Fr) has the lowest ionization energy.

Badrinath is situated on the bank of river Alaknanda.

If the price of a product rises, the demand for the substitute product increases.

Physical signs of stress include Frequent colds and infections, aches, pains and tense muscles, stomach upset, loss of sexual desire, etc...

The Gobi desert is located in northern China region and southern Mangolia region.

20 August, the birth anniversary of Rajiv Gandhi, which is celebrated as Sadbhavna Diwas (Harmony Day). Sadbhavana Diwas commemorates the memory of our late erstwhile Prime Minister, Rajiv Gandhi.

Ans. 
25% of 84 ÷ 7 = ?
[(25 × 84)/100]÷ 7 = ?
21÷ 7 = ?
? = 3