4461: Who is the President of the Council of Scientific and Industrial Reseach?
(a) President of India
(b) Vice-President of India
(c) Prime Minister of India
(d) Union Minister of Science and Technology
4462: India-based Neutrino Observatory is included by the Planning Commission as a mega science project under the 11th five-Year Plan. In this context, consider the following statements:
1. Neutrinos are chargeless elementary particles that travel close to the speed of light.
2. Neutrinos are created in nuclear reactions of beta decay.
3. Neutrinos have a negligible, but nonzero mass.
4. Trillions of Neutrinos pass through human body every second.
Which of the statements given above are correct ?
(a) 1 and 3 only
(b) 1, 2 and 3 only
(c) 2, 3 and 4
(d) 1, 2, 3 and 4
4463: The sex of the offspring is determined, when:
(a) The conception takes place
(b) The sperm fertilises the ovum
(c) The embryo is partially developed
(d) The end of gestation period is near
4464: Assertion (A) : A jet aircraft moving at Mach Number equal to 1 travels faster at an altitude of 15 km than while moving at mach number equal to 1 near the sea level.
Reason (R) : the velocity of sound depends on the temperature of the surrounding medium.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
4465: With reference to 'Near Field Communication (NFC) Technology', which of the following statements is/are correct?
1. It is a contactless communication technology that uses electromagnetic radio fields.
2. NFC is designed for use by devices which can be at a distance of even a metre from each other
3. NFC can use encryption when sending sensitive information.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 Only
(c) 1 and 3 only
(d) 1, 2 and 3