Q. Working of Safely fuses depends upon :
1. magnetic effect of the current.
2. chemical effect of the current.
3. magnitude of the current.
4. heating effect of the current.
Select the correct answer using the code given below.
1) 1, 2, 3 and 4
2) 1, 2 and 3 only
3) 3 and 4 only
4) 4 only
Q. Which of the following represents a relation for heat lost = heat gained?
1) Principle of thermal equilibrium
2) Principle of colors
3) Principle of calorimetry
4) Principle of vaporization
Q. When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is -
1) reflection of light
2) refraction of light
3) dispersion of light
4) scattering of light
Q. A refracting telescope consists of :
1) One concave mirror and one convex lens
2) Two convex lenses of unequal focal lengths
3) Two concave mirrors of different focal length
4) Two convex lenses of equal focal length
Q. The sunlight energy used by green plants in photosynthesis is transformed into -
1) Chemical energy
2) Physical energy
3) Both (A) and (B)
4) None of the above
Q. What is the audible range (hearing range) of humans ?
1) 20 Hz - 20000 Hz
2) 80 Hz - 100 Hz
3) 2 lac Hz - 4 lac Hz
4) 0 Hz - 20 Hz
Q. Superiority of intellect depends upon its power of concentration on one theme in the same way as a concave mirror collects all the rays that strike upon it into one point.
What type of reasoning is entailed in the above statement ?
1) Mathematical
2) Psychological
3) Analogical
4) Deductive
Q. In comparison to fossil fuels, nuclear energy is -
1) Expensive
2) Cheap
3) Disastrous
4) Hastle-free
Q. Unit of magnetic flux is -
1) Tesla
2) Gauss
3) Weber
4) Coulomb
Q. Electric motor works on the principle of -
1) Electromagnetic induction
2) Newton's law
3) Ohm's law
4) Bio-Savart's law
IntroductionAre you passionate about sports but don't see yourself as an athlete? Do you find the business side of sports fascinating? A career in sports management could be your winning ticket! This field combines business, sports, and management, offering dynamic roles that go far beyond the field →
Foundation Date: December 8, 1991 Headquarters: The Republic of Belarus Executive Secretaries: Sergei Lebedev Member Countries: 12 Commonwealth of Independent States (CIS) was established on December 8, 1991, and the leaders of the Republic of Belarus, the Russian Federation, and Ukraine signed an a →
In 2009, an unknown programmer by the name of Satoshi Nakamoto put forward a whitepaper that proposed a creation of new form of digital currency - cryptocurrency. Cryptocurrency functions the same way as regular currencies do in that its used as a means of exchange, unit of account and a store of va →
Headquarter: New Delhi Function and Objective of the Organization: The Food Safety and Standards Authority of India (FSSAI)has been established under Food Safety and Standards Act, 2006 which consolidates various acts & orders that have hitherto handled food-related issues in various Ministries →
If you contribute your content to our site. Please mail us your content to editor@onlinegk.net