182The most suitable unit for expressing nuclear radius is?
Ans : Fermi
183Erg sec is the unit of?
Ans : Planck’s constant
184Maxwell is the unit of?
Ans : Magnetic flux
185Unit of solid angle is?
Ans : Steradian
186Pick out the only scalar quantity?
Ans : Power
187Five equal forces of 10 N each are applied at one point and all are lying in one plane. If angles between them are equal, the resultant of these forces wil be?
Ans : Zero
188Bernoulli’s principle does not explain?
Ans : Lift of a jet
189An ideal liquid flows through a horizontal tube of variable diameter. The pressure is lowest where the?
Ans : Velocity is highest
190When a fluid passes through the constricted part of a pipe its?
Ans : Velocity increases and pressure decreases
191The rate of leak from a hole in a tank is?
Ans : More if situated near the bottom
192Dynamic lift is related to?
Ans : Bernoulli’s theorem
193A gale blows over a house. The force due to the gale on the roof is?
Ans : In the upward direction
194A large tank having a small hole at the bottom is filled with water to a height h. if the stream of water coming out of the hole is directed vertically upwards it will?
Ans : Rise to height h
195The velocity of flow of a liquid through an orifice at the bottom of a tank depends on the?
Ans : Both (b) and (c)
196An application of bernoulli’s equation for fluid flow is found in?
Ans : Dynamic lift of an aeroplane
197What is the SI unit of pressure?
Ans : Pascal
198Maxwell is the unit of?
Ans : Magnetic flux
199Pick out the only scalar quantity?
Ans : Power
200An object with a constant speed?
Ans : Is always accelerated
201Distance of stars is measured in?
Ans : Light year
202Earliest thermometer was developed by?
Ans : Galileo
203SI unit of temperature is?
Ans : Kelvin
204The correct value of 00C on the Kelvin scale is?
Ans : 27.315K
205The change in temperature of a body is 500C. the change on Kelvin scale is?
Ans : 50K
206The temperature of a gas is measured with a?
Ans : Pyrometer
207The temperature of the sun is measured with?
Ans : Pyrometer
208Fahrenheit scale divides two fixed points into?
Ans : 180 Parts
209SI unit of heat is?
Ans : Joule
210When an object is heated, the molecules of that object?
Ans : Began to move faster
"The more I want to get something done, the less I call it work"