Related Questions

An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.
A Adiabatic
B Isothermal
C Isentropic
D Isochoric
দুটি সুসঙ্গত উৎস থেকে λ দৈর্ঘ্যের দুটি তরঙ্গ সমদশায় বের হয় । একটি বিন্দুতে যেখানে তরঙ্গ দুটি মিলিত হয় সেখানে তাদের দশা পার্থক্য 90° । তরঙ্গ দুটির অতিক্রান্ত পথ পার্থক্য তখন কত ? ( Two coherent sources emit waves of wavelength λ which are in phase. which are in phase. The two waves meet at a point where they have a phase difference of 90°. Which of the following could be the traversed path difference between the waves?)
A 2λ
B λ
C λ/2
D λ/4
Sound waves are ------ waves.
A transverse
B Electromagnetic
C Longitudinal
D one of these
Which of the following statements is correct about sound waves and light waves?
A Both transverse waves
B Both longitudinal waves
C Sound waves are transverse waves and light waves are longitudinal waves
D Sound waves are longitudinal and light waves are transverse waves
Which of the following exemplifies resemblence with the extrusion process ?
A Pneumatic ejection of abrasive solid particles through a nozzle
B Toothpaste pouring out of the tube
C Ejection of abrasive slurry through an opening
D Viscous lubricant pouring out through its container's mouth
Which of the following exemplifies an adiabatic process?
A Melting of ice
B Condensation of alcohol vapor
C Sudden bursting of a cycle tube
D Evaporation of water
Disappearance of snow in subzero weather exemplifies the process of
A Evaporation
B Sublimation
C Vaporisation
D Melting
Removal of __________ exemplifies an adsorption unit operation.
A Uranium from its ore
B Water from petrol
C Ammonia from coke oven gas
D Mustard oil from mustard seed
Color of brass changes from yellow to __________ after its dezincification which exemplifies selective leaching.
A Grey
B Red
C Orange
D Violet
Reaction of benzene with chlorine gas to produce tri-chlorobenzene exemplifies a/an __________ reaction.
A Elementary
B Parallel
C Consecutive
D None of these

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