If a projectile has maximum range of 36m, find the speed of projection (Take g = 9.8m/s2)
19m/s
2m/s
4m/s2
7m/s2
Correct answer is A
No explanation has been provided for this answer.
J.J. Thompson
James Chadwick
Michael faraday
Dalton
Correct answer is B
Neutron were discovered by James Chadwick in 1931
The two liquids which are often used in thermometer on experiment basic is known as
Mercury only
Alcohol and Water
Mercury and Alcohol
Alcohol only
Correct answer is C
Mercury and alcohol are often used in THERMOMETER
Note:Water is never allowed to be used in thermometer because, it doesn’t expand uniformly
I & II only
II only
I, II, & III only
III only
Correct answer is C
Fig (I) (II) (III) are they in which a transformer was designed to reduce an energy loses by reducing through this collective designed or efforts
I only
III & IV only
II & III only
II only
Correct answer is C
The simplest way to change the boiling point of a liquid is to change the surrounding pressure. (a) Using a closed system to artificially increase that pressure will raise the boiling point of a liquid. (b) Boiling point is dependent upon the strength of the bonds between its molecules. For this reason, adding a solute to the liquid will create stronger bonds between molecules, raising the solution’s boiling point without increasing pressure.