Refraction of Refraction — Science STD 10 — Question

Name one sexually transmitted disease for which no definite cure has been found so far. What is the causative organism of this disease?

Name a metal compound which has detergent properties (cleansing properties).

Write any two important uses of bases.

Where in nature can you find evidence that white sunlight may be made of different colours?

What is meant by the minimum distance of distinct vision?

Electric power = V2/…….

Which of the following produces more heat (per unit mass) on burning?
Coal or LPG

A nuclear reactor has half the length of all its control rods inserted in graphite. What must be done so that the reactor produces more heat? Explain your answer.

Name two animals having eyes:
on the sides of the head.

Which type of disaster is described in the following statements: Many innocent people died in the bomb blast that occurred on 11th July 2006 in local trains.