Which of the following surfaces will radiate heat energy best?
Red
White
Black
Yellow
Blue
Correct answer is C
No explanation has been provided for this answer.
67.5oC
30.0oC
25.0oC
15.0oC
10.0oC
Correct answer is E
θ = (x/y) x 100.
where x = UFP -LFP -another scale, and y = UFP - LFP for celsius scale.
=> {(45-30)/(180-30)} x 100 = 10.0oC
120,000 W
30,000 W
333 W
300 W
30 W
Correct answer is B
P = mgh/t = (1000 \(\times\) 10 \(\times\) 60) \(\div\) 20 = 30,000 W.
Which of the following is a derived unit?
Metre
Coulomb
Kilogram
Second
Ampere
Correct answer is B
No explanation has been provided for this answer.
The motion of the prongs of the sounding tuning fork is
random
translational
rotational
vibratory
vibratory and rotational
Correct answer is D
No explanation has been provided for this answer.