MEDIUM
10th CBSE
IMPORTANT
Earn 100

PASSAGE
Nuclear fission is the phenomenon of splitting of an unstable nucleus of a heavy atom into two medium-weight nuclei due to bombardment with slow-moving neutrons, with the release of enormous amount of energy.

Nuclear fusion is the phenomenon of combining or fusing two or more lighter nuclei to form a stable heavier nucleus with the liberation of enormous amount of energy.

Now consider four materials -W, X, Y and Z with mass numbers 2, 35, 135 and 239 respectively.
With regard to the above, answer the following question:

Which of the given materials would you choose to make a hydrogen bomb?

50% studentsanswered this correctly

Important Questions on Sources of Energy

MEDIUM
10th CBSE
IMPORTANT
PASSAGE:
Nuclear fission is the phenomenon of splitting of an unstable nucleus of a heavy atom into two medium-weight nuclei due to bombardment with slow-moving neutrons, with the release of enormous amount of energy.
Nuclear fusion is the phenomenon of combining or fusing two or more lighter nuclei to form a stable heavier nucleus with the liberation of enormous amount of energy.
Now consider four materials -W, X, Y and Z with mass numbers 2, 35, 135 and 239 respectively.
With regard to the above, answer the following question:
Which among the following do you think will undergo nuclear fusion reaction?
EASY
10th CBSE
IMPORTANT

PASSAGE
Nuclear fission is the phenomenon of splitting of an unstable nucleus of a heavy atom into two medium-weight nuclei due to bombardment with slow-moving neutrons, with the release of enormous amount of energy.

Nuclear fusion is the phenomenon of combining or fusing two or more lighter nuclei to form a stable heavier nucleus with the liberation of enormous amount of energy.

Now consider four materials -W, X, Y and Z with mass numbers 2, 35, 135 and 239 respectively.
With regard to the above, answer the following question:

Which of the two- nuclear fission and nuclear fusion, does not cause pollution?

EASY
10th CBSE
IMPORTANT

PASSAGE
Nuclear fission is the phenomenon of splitting of an unstable nucleus of a heavy atom into two medium-weight nuclei due to bombardment with slow-moving neutrons, with the release of enormous amount of energy.

Nuclear fusion is the phenomenon of combining or fusing two or more lighter nuclei to form a stable heavier nucleus with the liberation of enormous amount of energy.

Now consider four materials -W, X, Y and Z with mass numbers 2, 35, 135 and 239 respectively.
With regard to the above, answer the following question:

The disposal of wastes in a nuclear power plant is a big problem because they are:

EASY
10th CBSE
IMPORTANT

Match the items in Column I to the items in Column II.

Column I Column II
(a) Temperature difference between surface water and 2 km depth water of ocean for OTEC plants. (p) 1.4 kW/m2
(b) Temperature attained by box-type solar cooker in two to three hours in summer. (q) 3×108 m/s
(c) Value of solar constant (r) 20° C
(d) Value of the constant ‘c’ in Einstein’s mass energy relationship equation (s) 100 to 140° C
MEDIUM
10th CBSE
IMPORTANT

Match the sources of energy in Column I to the locations where they are harnessed in Column II.

Column I Column II
(a) Tidal energy (p) Himachal Pradesh
(q) Sunderbans, West Bengal
(b) Geothermal energy (r) Gulf of Cambay, Gujarat
(s) Madhya Pradesh
(c) Nuclear energy (t) Tarapur, Maharashtra
(u) Kaprapur, Gujarat
(d) Wind energy (v) Kanyakumari, Tamil Nadu
MEDIUM
10th CBSE
IMPORTANT
Ryan constructed a box-type solar cooker. He found that it was not working efficiently. List four mistakes that Ryan could have committed in the construction of the cooker.
MEDIUM
10th CBSE
IMPORTANT
Solar cell panels are used in satellites to supply energy but cannot be used to meet our domestic requirements. Why?
EASY
10th CBSE
IMPORTANT
Which of the following is used as a moderator in the reactor of a nuclear power plant?