Which among the following are used in Computed tomography (CT) Scan?
A. X-Rays
B. Ultrasound
C. Infrared waves
D. Radio Waves
✅ The correct answer is option A.
In which year, Sir Chandrasekhara Venkata Raman was awarded Nobel Prize for Raman effect?
A. 1927
B. 1929
C. 1930
D. 1932
✅ The correct answer is option C.
Which among the following waves are used in the gemstone industry to change white topaz into blue topaz?
A. X-Rays
B. Gamma Rays
C. Alpha Radiation
D. Beta Radiation
✅ The correct answer is option B.
What do we call the part of the ―DTH Satellite dish‖ that converts the signals from electromagnetic or radio waves to electrical signals ?
A. Orthomode transducer (OMT)
B. Low-noise block converter (LNB)
C. Block upconverter (BUC)
D. Parabolic Dish
✅ The correct answer is option B.
The power we use at Home has a frequency of 60Hz. What would be the period of the sine wave?
A. 0.116 seconds
B. 0.0116 seconds
C. 0.00116 secon
D. 0.0016 Microseconds
✅ The correct answer is option B.
Consider the following advantages of the Optic Fibers and the Copper wires: Optic Fibers are NOT susceptible to the electrical interference Optic Fibers can be used to transmit more signals that Copper Wires Optic Fibers can carry a signal over a single fiber, unlike the electricity which requires a pair of Copper wires. Which among the above stand correct ?
A. Only 1 is correct
B. Only 1 & 2 are correct
C. All 1, 2 & 3 are correct
D. Only 3 is correct
✅ The correct answer is option C.
Consider the following: 1. Submarine Communications 2. AM Radio 3. Short Wave Radio 4. Radar Arrange the above in increasing frequency of the waves used in their applications.
A. 4 3 2 1
B. 1 2 3 4
C. 2 1 4 3
D. 2 3 4 1
✅ The correct answer is option B.
Which among the following correctly represents a Parsec?
A. 0.326 Light Years
B. 3.261 Light Years
C. 32.61 Light Years
D. 3.026 Light Years
✅ The correct answer is option B.
―Fermi‖ is a unit of which among the following?
A. Mass
B. Length
C. Velocity
D. Frequency
✅ The correct answer is option B.
Which among the following property of the matter is studied in ―Rheology‖?
A. Gravitation
B. Viscosity
C. Magnetic Properties
D. Entropy
✅ The correct answer is option B.