What is the rest mass energy of an electron?

894

---

Tell me why is heavy water used as a moderator?

859

---

Tell me how asteroids are formed?

936

---

Explain what is nucleus?

796

---

Explain what is relation between magnetic and electricity and why?

903

---

Explain what is optical medium?

900

---

Explain the working of basic rubber ink filler

897

---

Explain what is the rectilinear propagation of light?

936

---

Explain what is photometry?

896

---

Tell me when taken to the top of a mountain, a clock will go fast or go slow or no change or stop?

870

---

Explain what is h1n1?

920

---

Explain what is the shadows?

913

---

Explain what is the heterogenous?

883

---

Tell me how we are getting light from electrical bulb?

852

---

Draw a graph between frequency of photon and velocity of photo electron?

856

---