What is the rest mass energy of an electron?

946

---

Tell me why is heavy water used as a moderator?

901

---

Tell me how asteroids are formed?

969

---

Explain what is nucleus?

852

---

Explain what is relation between magnetic and electricity and why?

942

---

Explain what is optical medium?

943

---

Explain the working of basic rubber ink filler

955

---

Explain what is the rectilinear propagation of light?

995

---

Explain what is photometry?

935

---

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

916

---

Explain what is h1n1?

975

---

Explain what is the shadows?

958

---

Explain what is the heterogenous?

922

---

Tell me how we are getting light from electrical bulb?

888

---

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

898

---