Q: 7 (NDA-I/2018)
question_subject:
Science
question_exam:
NDA-I
stats:
0,9,3,0,9,1,2
keywords:
{'joules': [0, 0, 1, 1], 'kwh': [0, 0, 2, 1], 'energy': [0, 0, 1, 2], 'value': [0, 0, 1, 0]}
The correct answer to the given question is option 2: 3-6xio^J. This option represents the value of 1 kilowatt-hour (kWh) of energy converted into joules.
To understand this, we need to convert kilowatt-hours to joules. We know that 1 kilowatt-hour is equal to 3.6 million joules (3.6 x 10^6 J).
The term "3-6xio^J" represents 3.6 x 10^6 J in scientific notation. The "x" symbol indicates multiplication, and "io^J" represents 10 to the power of J. So, when we multiply 3.6 by 10^6, we get 3.6 million joules.
Therefore, the value of 1 kWh of energy converted into joules is 3.6 x 10^6 J.