एक कार्बन माइक्रोफोन सबसे श्रेष्ठ प्रयुक्त होता है-
A carbon microphone is best used in-
Comprehensive collection of questions from General Science asked in recent state service examinations. Each question is verified with official answer keys and step-by-step bilingual solutions.
A carbon microphone is best used in-
Which of the following is NOT correctly matched?
The layer of Earth's atmosphere called ionosphere enables radio communications. Why? 1. The presence of ozone causes the reflection of radio waves to Earth. 2. Radio waves have a very long wavelength. Which of the statements given above is/are correct?
When was the metric system introduced in India?
The tape of a tape recorder is coated with which of the following?
Which of the following is non-magnetic / diamagnetic?
The name of the first Indian station established for South Polar research is-
Magnetic Resonance Imaging (MRI) is based on the phenomenon of-
'Indian Institute of Naturopathy and Yogic Sciences' is located at-
Consider the following statements: Assertion (A): India's nuclear policy implies that it is not prepared for international inspection of its nuclear facilities. Reason (R): India will not manufacture nuclear devices. Select the correct answer from the code given below:
With reference to carbon nanotubes, consider the following statements: 1. They can be used as carriers of drugs and antigens in the human body. 2. They can be made into artificial blood capillaries for an injured part of human body. 3. They can be used in biochemical sensors. 4. Carbon nanotubes are biodegradable. Which of the statements given above are correct?
Chandra X-ray telescope was named in honor of which scientist?
Given below are two statements: Assertion (A): A candle flame does not exist in space. Reason (R): The existence of flame is due to gravity. In the context of the above, which one is correct?
The study of friction and lubricants is-
National Chemical Laboratory is located in-
The telescope observatory situated at the highest altitude in the world is in-
Consider the following statements: 1. Aadhaar card can be used as a proof of citizenship or domicile. 2. Once issued, Aadhaar number cannot be deactivated or omitted by the Issuing Authority. Which of the statements given above is/are correct?
A black hole-
Match List-I with List-II and select the correct answer using the code given below the lists: List-I List-II A. Revolver 1. Alfred Nobel B. Dynamite 2. Pascal C. Cooling 3. Colt D. Law of Pressure 4. Newton's Law Code:
Arrange the following products/examples of nanotechnology in increasing order of its four generations [I -> IV] and select the correct answer using the code given below: A. Aerosol B. 3-D Networking C. Molecular Manufacturing D. Targeted Drugs Code:
Quantum dot is -
Where is the site of the Enron Power Project located?
''Nano-plug'' is related to -
Who coined the term 'Nanotechnology' and when?
Which of the following pairs forms the terminals of an ordinary torch cell?