Explain how many femtometers are in a nanometer?

935

---

Explain what is free fall acceleration?

986

---

Explain what is relation between magnetic and electricity and why?

899

---

Explain what is optical medium?

897

---

Explain the working of basic rubber ink filler

891

---

Explain what is the rectilinear propagation of light?

930

---

Explain what is photometry?

892

---

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

868

---

Explain what is h1n1?

913

---

Explain what is the shadows?

912

---

Explain what is the heterogenous?

880

---

Tell me how we are getting light from electrical bulb?

850

---

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

855

---

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

954

---

explain the proper definition of light?

940

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