Q. Which one among the following is not a unit of measurement of surface ozone?
1) Microgram per meter cube
2) Nanogram per meter cube
3) Dobson unit
4) Parts per million
Q. The acceleration due to gravity at the Earth's surface depends on -
1) it is mass only
2) its radius only
3) both its mass and radius
4) either it is mass or its radius
Q. When water is heated from 0°C to 4°C, its density -
1) remains constant
2) increases
3) decreases
4) first increases then decreases to its original value
Q. Which one of the following statements about the aperture of a convex lens is correct?
1) It is equal to its radius of curvature
2) It is equal to its focal length
3) It is independent of its radius of curvature
4) It is equal to half of its focal length
Q. If an object is placed at the focus of a convex lens, its image is -
1) at the focus on the same side
2) at the focus on the opposite side
3) coincident with the lens
4) at infinity
Q. An object is dropped from a height onto the floor. Which one of the following remains uniform as it falls?
1) Its acceleration
2) Its momentum
3) Its kinetic energy
4) Its potential energy
Q. In the joining of railway tracks, iron oxide is made to react with -
1) Aluminium
2) Zinc
3) Copper
4) Tin
Q. A metal wire of length l and diameter d has a resistance R. What would be the resistance of another wire of the same metal and of the same length but having double the diameter?
1) R
2) R/4
3) R/2
4) 2R
Q. The device used for measuring electric current in a circuit is called -
1) Ammeter
2) Motor
3) Voltmeter
4) Generator
Q. The pitch of a sound wave depends upon which one of its following characteristics?
1) Speed
2) Loudness
3) Amplitude
4) Frequency
Fashion design is a dynamic and creative field that offers innovative career openings for those with a passion for style, creativity, and invention. This composition will explore the colorful job prospects in the fashion design assiduity, the original hires one can anticipate, and punctuate some o →
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