491. Tripura is surrounded by ____ in the east

A. Assam
B. Mizoram
C. both (a) and (b)
D. Bangladesh
✅ The correct answer is option C.
Tripura is surrounded by Assam and Mizoram in the east. Tripura is a state in North-East India which borders Bangladesh, Mizoram and Assam. It is surrounded by Bangladesh on its north, south and west: the length of its international border is 856 km (84 per cent of its total border). It shares a 53 km long border with Assam and a 109 km long border with Mizoram.

492. Rabindranath Tagore is also known as

A. Netaji
B. Guruji
C. Gurudev
D. Mahamana
✅ The correct answer is option C.
Rabindranath Tagore is also known as Gurudev. He was popularly called as Gurudev and his songs were popularly known as Rabindrasangeet. Two songs from his Rabindrasangit canon are now the national anthems of India and Bangladesh: the Jana Gana Mana and the Amar Shonar Bangla. Rabindranath Tagore was born on May 7, 1861 in a wealthy Brahmin family in Calcutta.

494. What is the capital of Dadra and Nagar Haveli?

A. Daman
B. Silvassa
C. Dispur
D. Shilling
✅ The correct answer is option B.
Silvassa is the capital of Dadra and Nagar Haveli. It is composed of two separate geographical entities: Nagar Haveli, wedged between Maharashtra and Gujarat, and, 1 km to the northwest, the smaller enclave of Dadra, which is surrounded by Gujarat.

495. The measurement of Lawn Tennis court for singles

A. 70 ft. by 26 ft.
B. 78 ft. by 27 ft.
C. 70 ft. by 30 ft.
D. 78 ft. by 38 ft.
✅ The correct answer is option B.
The measurement of Lawn Tennis court for singles 78 ft. by 27 ft. A tennis court is 78 feet long and 27 feet wide. To the nearest foot, what is the length of the diagonal of a Tennis court.

496. When is the World’s Diabetes Day?

A. 14th November
B. 11th December
C. 15th October
D. 1st July
✅ The correct answer is option A.
It is marked every year on 14 November, the birthday of Sir Frederick Banting, who co-discovered insulin along with Charles Best in 1922. World Diabetes Day was created in 1991 by IDF and the World Health Organization in response to growing concerns about the escalating health threat posed by diabetes.

498. The first recipient of Bharat Ratna award in 1954 was

A. S. Radhakrishnan
B. C. Rajagopalachari
C. C.V. Raman
D. Jawaharlal Nehru
✅ The correct answer is option B.
The first recipient of Bharat Ratna award in 1954 was C. Rajagopalachari. Chakravarti Rajagopalachari (C. Rajagopalachari; 10 December 1878 – 25 December 1972), informally called Rajaji or C.R., was an Indian politician, independence activist, lawyer, writer, historian and statesman. Rajagopalachari was the last Governor-General of India, as India soon became a Republic in 1950. Furthermore, he was the first Indian-born governor-general, since before him the posts were held by British nationals.

499. The SLV-3 project provided India with the expertise to lop a larger and more sophisticated launch vehicle

A. PSLV
B. ASLV
C. GSLV
D. None of the above
✅ The correct answer is option B.
The SLV-3 project provided India with the expertise to lop a larger and more sophisticated launch vehicle ASLV. The successful culmination of the SLV-3 project showed the way to advanced launch vehicle projects such as the Augmented Satellite Launch Vehicle (ASLV), Polar Satellite Launch Vehicle (PSLV) and the Geosynchronous satellite Launch Vehicle (GSLV).

500. The ozone layer restricts

A. visible light
B. infrared radiation
C. x-rays and gamma rays
D. ultraviolet radiation
✅ The correct answer is option D.
The ozone layer restricts ultraviolet radiation. The Ozone layer which is present in the Earth’s atmosphere protects it by restricting from UV or Ultraviolet radiation, the dangerous rays contained by Sun.