46. Blue revolution stands for:
Ans (a) Fish production
47. Which of the following is the highest dam of India?
Ans (c) Tehri dam
48. Where was Mahavira Jain born?
Ans (b) Vaishali
49. Who is the president of Ukraine?
Ans (a) Volodymyr Zelenskyy
50. Which city is known as the ‘City of Lakes’ in India?
Ans Udaipur
51. Who amongst the following is the recipients of the Padma Shree 2022
Ans (b) Prof. Najma Akhtar
52. Which city is going to host the Olympics in 2024?
Ans (d) Paris, France
53. What is the average thickness of the biosphere?
Ans 20 kms
54. The Harappan Civilization flourished during _______ the age.
Ans (d) Chalcolithic
55. Scurvy is caused due to the deficiency of:
Ans (c) Vitamin C
56. In the case of a real and inverted image, the magnification of the mirror is:
Ans (b) negative
57. A convex lens of power +4D is brought in contact with a concave lens of power et +40 is brought in contact with -2D. The power of the lens combination is:
Ans (b) +2D
58. The twinkling of stars is due to atmospheric
Ans (c) refraction of light by different layers of varying refractive indices.
59. Refractive index of glass is maximum for the light of:
Ans (b) violet colour
60. The bluish colour of water in the deep sea is due to :
Ans (c) scattering of light