General Knowledge
PHYSICS MCQs
Total Questions : 1565
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Answer: Option D. -> None of these
According to National Institute of occupational safety and health, Under dry condition, the resistance of the human body is 100,000 ohms. Under wet condition, the resistance is reduced to 1000 ohms.
According to National Institute of occupational safety and health, Under dry condition, the resistance of the human body is 100,000 ohms. Under wet condition, the resistance is reduced to 1000 ohms.
Answer: Option C. -> Both (A) and (B)
Quality of transmission is governed both by nature of signal and nature of communication channel/medium.
Quality of transmission is governed both by nature of signal and nature of communication channel/medium.
Answer: Option B. -> Transient state of short-circuit current
Circuit breaker usually operate under transient state of short-circuit current.
Circuit breaker usually operate under transient state of short-circuit current.
Answer: Option D. -> Power source
The power source such as a Battery of an IED creates an electrical charge. An Improvised Explosive Device (IED) is a bomb constructed and deployed in ways other than in conventional military action.
The power source such as a Battery of an IED creates an electrical charge. An Improvised Explosive Device (IED) is a bomb constructed and deployed in ways other than in conventional military action.
Answer: Option D. -> All of the above
A digital multimeter is a test tool used to measure two or more electrical values—principally voltage (volts), current (amps) and resistance (ohms).
A digital multimeter is a test tool used to measure two or more electrical values—principally voltage (volts), current (amps) and resistance (ohms).
Answer: Option A. -> Gene mutation
Gamma rays can cause Gene mutation.
Gamma rays can cause Gene mutation.
Answer: Option C. -> The infra-red rays
Green house effect is the heating up of the Earth's atmosphere which is due to infrared rays.
Green house effect is the heating up of the Earth's atmosphere which is due to infrared rays.
Answer: Option B. -> Infra-red radiation
Infrared is used in night vision equipment when there is insufficient visible light to see. Night vision devices operate through a process involving the conversion of ambient light photons into electrons which are then amplified by a chemical and electrical process and then converted back into visible light.
Infrared is used in night vision equipment when there is insufficient visible light to see. Night vision devices operate through a process involving the conversion of ambient light photons into electrons which are then amplified by a chemical and electrical process and then converted back into visible light.
Answer: Option A. -> Radio waves
Visible light has a higher frequency than radio waves.
Visible light has a higher frequency than radio waves.
Answer: Option A. -> Infrared radiation
Infrared radiation has the longest wavelength.
Infrared radiation has the longest wavelength.
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