1. State the order of matrix M.
2. Find the matrix M.

A block and tackle system of pulleys has velocity ratio 4.

1. Draw a neat, labelled diagram of the system indicating clearly the points of application and direction of load and effort.
2. What will be its
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Solve the following inequation and represent the solution set on the number line.

Propane burns in air according to the following equation:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

What volume of propane is consumed on using 1000 cm³ of air, considering only 20% of air contains oxygen?

The vein which drains the blood from the intestine to the liver.

Give the Biological / technical term.

State one observation: Concentrated nitric acid is reacted with sulphur

Give a geographical reason: The growing of pulses is important in India.

The diagram below shows a magnetic needle kept just below the conductor AB which is kept in North South direction.

1. In which direction will the needle deflect when the key is closed?
2. Why is the
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Name the following: An oil refinery in Bihar.

Name the soil which is acidic in nature

Complete the path of the monochromatic light ray AB incident on the surface PQ of the equilateral glass prism PQR till it emerges out of the prism due to refraction.

The diagram given below represents a plant cell after being placed in a strong sugar solution. Study the diagram and answer the questions that follow: 

1. What is the state of the cell shown in the
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When a current carrying conductor is placed in a magnetic field, it experiences a mechanical force. What should be the angle between the magnetic field and the length of the conductor so that the...

A metal oxide that can be reduced by hydrogen

₹7500 were divided equally among a certain number of children. Had there been 20 less children, each would have received ₹100 more. Find the original number of children.

(i) Name the system which enables us to locate underwater objects by transmitting ultrasonic waves and detecting the reflecting impulse.

(ii) What are acoustically measurable quantities related to...