Explain how many femtometers are in a nanometer?

986

---

Explain what is free fall acceleration?

1043

---

Explain what is relation between magnetic and electricity and why?

954

---

Explain what is optical medium?

950

---

Explain the working of basic rubber ink filler

966

---

Explain what is the rectilinear propagation of light?

1003

---

Explain what is photometry?

944

---

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

924

---

Explain what is h1n1?

987

---

Explain what is the shadows?

966

---

Explain what is the heterogenous?

928

---

Tell me how we are getting light from electrical bulb?

902

---

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

906

---

What are the ten satellite launched from india and year of launch?

999

---

explain the proper definition of light?

1001

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