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Q.1. In which year, Sir C. V. Raman was awarded the Nobel Prize for Raman effect?
(a) 1927
(b) 1929
(c) 1930
(d) 1932
Correct Answer: C
Explanation- 1930
The Nobel Prize in Physics 1930 was awarded to Sir ChandrasekharaVenkata Raman “for his work on the scattering of light and for the discovery of the effect named after him.” Hence Option C is correct.
Q.2. With reference to human blood which of the following statement/s is/are correct?
(1) in a healthy male the percentage of haemoglobin is more as compared to what it is in a normal healthy female.
(2) The normal value of platelet counts in human blood ranges from 2,00,000 to 4,50,000 c.m.m.
Select the correct answer using the code given below:
Code:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct Answer: C
Explanation- In the context of human blood both the statements are given above are correct. Hence Option C is correct.
Q.3. ‘Fermi’ is a unit of ________?
(a) mass
(b) length
(c) velocity
(d) time
Correct Answer: B
Explanation- A unit of length used to measure nuclear distances, = 10⁻¹⁵ meters. Named for the Italian physicist Enrico Fermi (1901–1954). Now obsolete, replaced by the SI term femtometer (symbol, fm); one fermi = one femtometer. Hence Option B is correct.
Q.4. ‘Ohm’ is a unit of measuring_______?
(a) resistance
(b) voltage
(c) current
(d) conductivity
Correct Answer: A
Explanation- The ohm is the SI unit of electrical resistance. The electrical resistance of an object is the measure of its obstruction to the flow of electric current. The unit of resistivity is ohm-metre. Hence Option A is correct.
Q.5. BCG imunization is for__________?
(a) measles
(b) tuberculosis
(c) diphtheria
(d) leprosy
Correct Answer: B
Explanation- This vaccine is used to prevent tuberculosis (TB) in people who have not been infected with the disease but are at a high risk of getting it. This vaccine is not used to treat tuberculosis. This vaccine contains live bacteria that have been weakened. Hence Option B is correct.
Q.6. The earliest culture unearthed at Chirand is ________?
(a) Neolithic culture
(b) Chalcolithic culture
(c) Mesolithic culture
(d) Historical culture
Correct Answer: A
Explanation- Chirand is an archaeological site in the Saran district of Bihar, India, situated on the northern bank of the Ganga River.[1][2] It has a large pre-historic mound which is known for its continuous archaeological record from the Neolithic age (about 2500–1345 BC) to the reign of the Pal dynasty who ruled during the pre-medieval period. Hence Option A is correct.
Q.7. Which of the following is the correct pledge set for the countries to limit their temperature by 2050 by a U.N. body?
(a) to reduce the temperature by -1.5°C
(b) to reduce the temperature by 2° C.
(c) to reduce the temperature by 1° C.
(d) None of the above
Correct Answer: A
Explanation- The Paris Agreement is a legally binding international treaty on climate change. It was adopted by 196 Parties at COP 21 in Paris, on 12 December 2015 and entered into force on 4 November 2016. Its goal is to limit global warming to well below 2, preferably to 1.5 degrees Celsius, compared to pre-industrial levels. Hence Option A is correct.
Q.8. The discoverer of penicillin was ____________?
(a) Lord Lister
(b) Alexander Fleming
(c) Karl Landsteiner
(d) Walter Reed
Correct Answer: B
Explanation- Alexander Fleming was a Scottish physician-scientist who was recognised for discovering penicillin. Hence Option B is correct.
Q.9. The Bhopal Gas tragedy was caused by the leakage of which gas?
(a) Phosgene
(b) Carbon dioxide
(c) Methyl isocyanate
(d) Chlorine
Correct Answer: C
Explanation- methyl isocyanate
On the night of December 2, 1984, chemical, methyl isocyanate (MIC) spilt out from Union Carbide India Ltd’s (UCIL’s) pesticide factory turned the city of Bhopal into a colossal gas chamber. Hence Option C is correct.
Q.10. With which material Harappan culture tools were made?
(a) Gold
(b) Silver
(c) Copper/Bronze
(d) Iron
Correct Answer: C
Explanation- Harappan objects were made of stone, Shell, and metal. Copper and bronze were used to make tools, weapons, ornaments, and vessels. Gold and silver were used to make ornaments and vessels. Hence Option C is correct.