Here, AB is common chord of both the circles. We kow, common chord AB is perpendicular to the line joining the centre of circle PQ. So, PQ is perpendicular to MN.                    Let .....

Difference between parenchyma and sclerenchyma are:-       Parenchyma       Sclerenchyma 1. They have very thin cell wall. 1. They have thick cell wall. 2. The cells are .....

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The distance travelled by light in year is called light year.  The distance travelled by light in one year is one light .....

The consumers which depend on secondary consumer for food are called tertiary .....

The two diseases caused by bacteria are influenza and .....

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Homeothermic animals are those animals which maintain their body temperature constant independent of temperature of .....

The water which doesn't produce lather with soap easily due to presence of ions of magnesium or calcium is called hard .....

As shown in figure, carbon has catenation property which makes long chain of .....

The solution that contains a large amount of solute relative to the amount that could dissolve  is called concentrated .....

The valency of Aluminum is 3, it means that it can donate 3 electrons from its valence shell to satisfy octet state to become .....

तँ किताब पढेस् । .....

The work which is done by machine is called output .....

The force which when applied on a body of mass of 1 kg provides the acceleration of 1m/s2 is known as one Newton force. 1 Newton force= .....

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The greenhouse effect is the effect in which certain gases trap the heat in our atmosphere and increases the temperature. Some of the effects are: Increase in the temperature of the atmosphere. Extreme hot and coldness in the various parts of .....

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The presence or increase of unwanted chemicals in our environment which disrupts the balance of our ecosystems, and harms our .....

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Salma says that the Sun rises in the .....

A work is a job we do for earning money. Without money, we cannot do much. We can not pay for foods, house rent, school fees etc. With money, we can pay for all these things. And for money, we need to work hard. So, work is very .....

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Any substance which is burnt or made to react with other substances to get energy is called .....

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नेपाल  प्राकृतिक सौन्दर्यले सजिएको अधिकतम पक्षलाई समेट्दै उनले नेपाली जाती, प्रकृति, .....

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We eat food to get energy. when we loss our energy we feel hungry and tired, so we eat food to get energy .....

Solution, 1. The no. of students who have secured the marks from 60-80 is 8. 2. The total no. of students is 12+16+8+20+4=60 (by adding the no. of students securing marks from .....

6. Valency of Aluminium is 3, it means that it can donate 3 electrons from its valence shell to satisfy octet state which make it stable. 7. Concentrated solution is a solution that contains a large amount of solute relative .....

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प्रश्न प्रष्ट भउन त साथी । फेरि पठाउनुहोस् न ल .....

King Mandev was first historical king of Licchavi Dynasty of Nepal. Mandev ruled Nepal from 464 AD to 505 .....

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= 9846219 X .....