Practice Question and Answer
8 Q: In 1928, who discovered that when a ray of coloured light enters a liquid, a fraction of the light scattered by that liquid is of a different colour?
1115 06441226772ca731a9945cf9b
6441226772ca731a9945cf9b- 1SN Bosefalse
- 2Lord Rayleighfalse
- 3CV Ramantrue
- 4John Tyndallfalse
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Answer : 3. "CV Raman"
Explanation :
Sir Chandrasekhara Venkata Raman, discovered on 28 February 1928, that when a beam of coloured light entered a liquid, a fraction of the light scattered was of a different color, dependent on material property. This radiation effect of molecular scattering of light bears the name of ‘Raman Effect’, from which many applications in photonic communications and spectroscopy evolved. The Raman Effect is the process of scattering light particles by molecules of a medium.
Q: Select the option that can be used as a one-word substitute for the given group of words.
A keeper or custodian of a museum
1115 0642abf6a9d18d2e8ae2593a9
642abf6a9d18d2e8ae2593a9- 1Creatorfalse
- 2Developerfalse
- 3Masterfalse
- 4Curatortrue
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Answer : 4. "Curator"
Explanation :
A curator is a person responsible for the care, maintenance, and management of a museum or other collection, fitting the given context.
Q: If $${{(17)^3-(7)^3}\over (17^2+7^2+k)}=10 $$ , then what is the value of k?
1115 06450e2a5508d9a21f7929dfc
6450e2a5508d9a21f7929dfc- 1102false
- 2119true
- 3136false
- 485false
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Answer : 2. "119"
Q: In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.
1115 0606596965815fc6501f7f10d
606596965815fc6501f7f10d- 12false
- 27false
- 314true
- 428false
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Answer : 3. "14"
Q: How many bits are there in a byte?
1115 063e9feba7407bd1b2d271b22
63e9feba7407bd1b2d271b22- 12false
- 24false
- 38true
- 416false
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Answer : 3. "8"
Q: 'अभ्युदय' शब्द में कौनसी संधि है?
1115 0636a1e76825f2247ad6e60d2
636a1e76825f2247ad6e60d2- 1गुणfalse
- 2अयादिfalse
- 3यण्true
- 4दीर्घfalse
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Answer : 3. "यण्"
Q: PM Modi allocated how much fund as immediate assistance to West Bengal to recover from its loses due to devastating Cyclone Amphan?
1114 05ed38c379332fc4e74a4d62f
5ed38c379332fc4e74a4d62f- 1Rs 2000 crorefalse
- 2Rs 1000 croretrue
- 3Rs 1500 crorefalse
- 4Rs 2500 crorefalse
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Answer : 2. "Rs 1000 crore"
Q: When was the Constitution of India adopted by the Constituent Assembly?
1114 0638e215d34f83f147291cf05
638e215d34f83f147291cf05- 115 August 1947false
- 215 August 1948false
- 326 January 1949false
- 426 November 1949true
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