841. At which of the following places water shall boil at the lowest temperature?
A. Kochi
B. ooty
C. Mount Abu
D. New Delhi
✅ The correct answer is option B.
SSC
842. Which among the following is known as first electronic amplification device?
A. Diode
B. Triode Vaccum Tubes
C. Vacuum Tubes
D. bipolar transistors
✅ The correct answer is option B.
843. A vehicle moving on a circular path experiences ________?
A. centripetal force
B. centrifugal force
C. gravitational force
D. None of the above
✅ The correct answer is option A.
844. What is the normal temperature of human being on Kelvin scale?
A. 290
B. 300
C. 310
D. 320
✅ The correct answer is option C.
845. ―Svedberg Unit‖ is a unit of _________?
A. Concentration
B. Size
C. Density
D. Time
✅ The correct answer is option D.
846. Ultrasound which is upper limit of human hearing is characterized by which of the following frequencies?
A. Above 20 KHz
B. Above 200 KHz
C. Above 2 KHz
D. Below 20 KHz
✅ The correct answer is option A.
847. One Torr is equivalent to how many mm of Mercury?
A. 1 mm
B. 10 mm
C. 100 mm
D. 0.1 mm
✅ The correct answer is option A.
848. A small quantity of water is placed in a small cavity made in a block of Ice at 0 degree centigrade. Which of the following will happen?
A. the temperature of water will become zero and it will freeze
B. the temperature of water will become zero but it will not freeze
C. the temperature of the water will become zero and it will come out of the cavity
D. the temperature of the water will become zero and ice will melt to merge with water
✅ The correct answer is option B.
849. Which among the following is the most common cause of Sunburn?
A. Ultraviolet Radiation
B. Visible Radiation
C. Infrared Radiation
D. Microwave Radiation
✅ The correct answer is option A.
850. Who was the first scientist to be awarded two Nobel Prizes?
A. Linus Pauling
B. Frederick Sanger
C. Marie Curie
D. John Bardeen
✅ The correct answer is option C.