Home > General Knowledge > General Science

General Science - Questions and Answers

Practice questions on General Science.

Ready to test your skills?

Take a timed mock test specifically for General Science.

Start Mock Test
1511. Sound travels faster in :
A. dry air then in water
B. wood than in iron
C. iron than in air
D. hydrogen than in water
Explanation:
1512. Why do rain bearing clouds look black ?
A. All light is scattered by them
B. They reflect the sunlight back into the atmosphere
C. The large number absorb all the sunlight
D. There is a lot of dust condensed on the water vapour in these clouds
Explanation:
1513. In the manufacture of safety matches, which of the following materials are used to coat the two sides of match boxes ? 1. Yellow phosphorus 2. Potassium chlorate 3. Glass powder 4. Red phosphorus
A. 1, 2 and 3
B. 1, 3 and 4
C. 1, 2 and 4
D. 2, 3 and 4
Explanation:
1514. The most significant revolution in physics in the twentieth century was :
A. Bohrs theory of hydrogen atom
B. nuclear fusion
C. Plancks quantum theory and Einsteins theory of relativity
D. quantum mechanics
Explanation:
1515. According to Einsteins theory of relativity, when a body moves with a velocity comparable to the velocity of light, its :
A. mass and length decrease
B. mass and length increase
C. length increases but mass decreases
D. length decreases but mass increases
Explanation:
« Prev123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483Next »