Physics problems
- 1. Which among the following determines the pitch of a sound?
Options- A. Amplitude
- B. Frequency
- C. Loudness
- D. Wavelength Also asked in: Bank Exams
Correct Answer: Frequency
- 2. What is the SI unit of heat energy?
Options- A. Joule
- B. Newton
- C. Calorie
- D. Kelvin Also asked in: Bank Exams
Correct Answer: Joule
- 3. What is the SI unit of Power?
Options- A. Boyle
- B. Watt
- C. Newton
- D. Pascal Also asked in: Bank Exams
Correct Answer: Watt
- 4. When light passes from one medium to another, this phenomenon of change in its direction is called _____.
Options- A. Refraction
- B. Diffraction
- C. Propagation
- D. No option is correct Also asked in: Bank Exams
Correct Answer: Refraction
- 5. For an object, the state of rest is considered to be the state of ______ speed.
Options- A. increasing
- B. B)
- C. inverse
- D. zero Also asked in: Bank Exams
Correct Answer: zero
- 6. Instrument for measuring low temperatures is called
Options- A. Diagometer
- B. Cryometer
- C. Chromatoptometer
- D. Cymometer Also asked in: Bank Exams
Correct Answer: Cymometer
- 7. The antiparticle of an electron is
Options- A. Positron
- B. Proton
- C. Alpha particles
- D. Beta particles Also asked in: Bank Exams
Correct Answer: Positron
- 8. If the mass of an object is 60 kgs, what will be its weight on the moon? (N=Newton)
Options- A. 60N
- B. 600N
- C. 100N
- D. 10N Also asked in: Bank Exams
Correct Answer: 100N
- 9. Reflection from a smooth surface like that of a mirror is called ___________ reflection.
Options- A. regular
- B. irregular
- C. diffused
- D. fused Also asked in: Bank Exams
Correct Answer: regular
- 10. Which best describes how air moves during convection?
Options- A. cool air falls down
- B. warm air falls down
- C. cool air is replaced by warm air
- D. air always falls down Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO
Correct Answer: cool air falls down
Explanation:
During convection, cool and dense air falls through the warmer and less dense air. The warm air having less mass is being displaced by the cooler which is much heavy. Convection always involves the air rising through the atmosphere.
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