What do you mean by newton meter?

921

---

What is the weight of automotive oil?

945

---

What is the difficulty in making fusion based nuclear reactors?

992

---

State 'law of machines'?

1020

---

In which medium does the sound travel fatest?

1022

---

Explain optical telescopes?

980

---

Which property of the rain coat makes it water proof?

1053

---

Explain nuclear fission?

959

---

Why is mercury used in thermometers rather than water?

1064

---

Explain interference?

964

---

Which properties of waves are independent of each other?

927

---

What are mitochondria? Why are they called as "power house" of a cell?

1056

---

What does the diaphragm do?

1028

---

How many types of twins can be there?

1131

---

What are the bones of face called as?

1006

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