OTS (Open Testing Service) · Khuddam-ul-Hujjaj/ Nazims for Hajj (OTS 2027 - Includes All NTS Past Papers)
Guinness World Records (General Knowledge Focus) MCQs with Answers & Explanations (Page 134)
World Records & Superlatives
· General Knowledge
10,583 Questions• 7938 Mins Practice• Updated for 2026 Competitive Exams
10583 MCQs
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10583 Questions
2661
In a ripple tank, 40 waves pass through a certain point in one second. If the wavelength of the wave is 5 cm, then speed of the wave is:
Correct Option
Option D
2662
If the potential at a point which is 1m from a charge is 1 volt, then the potential at a point which is 2m from the same charge will be:
Correct Option
Option C
2663
The values of electric intensity will ______ due to the presence of dielectric medium:
Correct Option
Option C
2664
At what angle of projection of a projectile the range becomes half of its maximum value?
Correct Option
Option A
2665
The Newton-second is unit of:
Correct Option
Option C
2666
A 1.75 m height weight-lifter lifts weights with a mass of 50 kg to a height of 0.5 m above his head. How much work is being done by him? (g=10 m/s²)
Correct Option
Option B
2667
What is the speed of 2.0 kg metallic bob at the mean position of a simple pendulum, when released from its extreme position 0.5 m height? (g=10 m/s²)
Correct Option
Option A
2668
The Earth rotates on its axis once a day. Suppose, by some process the earth contracts so that its radius is only half as large as present, then how long will the earth take to complete its rotation?
Correct Option
Option A
2669
1 Radian is equal to:
Correct Option
Option C
2670
In transmission from grid station, power losses are minimised by:
Correct Option
Option D
2671
The domestic electricity supply has a frequency of:
Correct Option
Option D
2672
PIV stands for:
Correct Option
Option C
2673
In full wave rectification, the number of diodes used is:
Correct Option
Option B
2674
The wavelength associated with an electron is of the order of:
Correct Option
Option B
2675
Which one of the following series lies in the ultraviolet region?
Correct Option
Option C
2676
There are initially 400 atoms in a radioactive sample. What would be the number of atoms after three half-lives?
Correct Option
Option B
2677
While using radiation therapy, cancerous thyroid is treated with ______ radioisotope:
Correct Option
Option D
2678
When a wire is compressed and its radius becomes 2R then its resistance will be:
Correct Option
Option D
2679
One of the following is an ohmic device:
Correct Option
Option D
2680
Alkyl halides involving C-X bond breakage and C-Nu bond formation simultaneously would follow the mechanism:
