Red cabbage juice can be used as an acid-base indicator. When a solution is highly acidic, the juice turns red. As the acidity d
2 answers:
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Answer:
(A) 140 j/sec (b) 1.26 K
Explanation:
We have given the heat heat flowing into the refrigerator = 40 J/sec
Work done = 40 W
(a) So the heat discharged from the refrigerator
(b) Total heat absorbed =140 j/sec
Let the temperature be
Heat absorbed per hour =504000
So
Explanation:
Given that,
Wavelength of the light,
Work function of sodium,
The kinetic energy of the ejected electron in terms of work function is given by :
The formula of kinetic energy is given by :
Hence, this is the required solution.