General Science Practice Question and Answer
8 Q: Optics is the study of:
1313 0609a7258b9384d208cda8307
609a7258b9384d208cda8307- 1Atmospherefalse
- 2Nature & Properties of lighttrue
- 3Insectsfalse
- 4Diseasefalse
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Answer : 2. "Nature & Properties of light"
Q: Virus contains –
1312 06310f4de4e3bf85cbe82febf
6310f4de4e3bf85cbe82febf- 1Lipid and carbohydratefalse
- 2Protein and lipidfalse
- 3Nucleic acid and proteintrue
- 4None of thesefalse
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Answer : 3. "Nucleic acid and protein "
Explanation :
1. Viruses do not find a place in classification because they are not actually considered 'living'.
2. Viruses are non-cellular organisms.
3. The name virus which means poison or poisonous fluid was given by Dmitry Ivanovsky.
4. Viruses cause diseases like mumps, smallpox, shingles and influenza.
Q: Which law of physics states that the force between the two electric charges reduces to a quarter of its former value when the distance between them is doubled?
1311 060926f6c265c9d1ad0135c28
60926f6c265c9d1ad0135c28- 1Coulomb’s Lawtrue
- 2Pascal’s Lawfalse
- 3Stefan’s Lawfalse
- 4Hooke’s Lawfalse
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Answer : 1. "Coulomb’s Law "
Q:Read the following questions carefully and answer them.
What is the principal ore of aluminum?
1307 063aaab45e590d4085fcfe5ff
63aaab45e590d4085fcfe5ff- 1Dolomitefalse
- 2Copperfalse
- 3Lignitefalse
- 4Bauxitetrue
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Answer : 4. "Bauxite"
Q: Hepatitis B spreads through ___________.
1305 0639c8cf4c7eb1b240b5f8ee5
639c8cf4c7eb1b240b5f8ee5- 1virusestrue
- 2protozoafalse
- 3bacteriafalse
- 4fungifalse
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Answer : 1. "viruses"
Q: Litmus is obtained from-
1304 063b6c63d61d62119f1a1daaa
63b6c63d61d62119f1a1daaa- 1from bacteriafalse
- 2from algaefalse
- 3from fungusfalse
- 4from lichentrue
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Answer : 4. "from lichen"
Explanation :
Litmus is obtained from lichens, which are composite organisms formed from a symbiotic relationship between a fungus and an alga or cyanobacterium. Litmus is a water-soluble mixture of different dyes extracted from lichens, primarily Roccella tinctoria and Roccella fuciformis. It is commonly used as a pH indicator in laboratories to test the acidity or alkalinity of solutions.
Q: The refractive index of diamond is-
1303 063b56b933d35cd0dee949e11
63b56b933d35cd0dee949e11- 11.77false
- 21.47false
- 31.44false
- 42.42true
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Answer : 4. "2.42"
Explanation :
The refractive index of diamond is approximately 2.42. Diamond has a very high refractive index, which means it bends light at a significant angle when it enters the diamond, contributing to its sparkling brilliance.
Q: Which of the following is used as a coolant in nuclear reactors?
1299 0606c2375c476de27c7b19925
606c2375c476de27c7b19925- 1calciumfalse
- 2Graphitefalse
- 3Heavy watertrue
- 4Cadmiumfalse
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