Question
A rectangular paper of width 8cm and length 22cm rolled
along it width and a cylinder is formed. On the above Intimation, Solve the question given below The volume of cylinder isSolution
Rectangular width =8cm, length =22cm After rolled cylinder form – H=8cm and Circumference =22cm ATQ- 2 πr=22cm 2×22/7×r=22 r=7/2cm. the volume of the cylinder= πr2h=7/2×7/2×8× π =98 πcm3
Which of the following statement is/are true?
I. Metal oxides are acidic in nature
II. Non-metallic oxides are basic in nature
Acid rain is caused due to pollution of the atmosphere by:
What is heavy water?
The motion of an object under free fall is an example of which of the following?
Which radioactive element is used in heart pacemakers?
A mixture of carbon monoxide and hydrogen is known as ______
Which of the following alkali metals has the highest specific heat?
What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius?
Bases react with acids to form ________.
Which is the lightest and most abundant chemical element, constituting roughly 75 % of the Universe’s elemental mass?
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