Please select a subject first
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Match the following:
| 1. | Electric generator | a. | Electromagnetic induction |
| 2. | Dynamo | b. | Fleming’s left-hand rule |
| 3. | Magnetic field lines | c. | Slip rings |
| 4. | Electric motor | d. | North to south |
Concept: undefined >> undefined
An electric generator works on the principle of electromagnetic induction.
Concept: undefined >> undefined
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Define an electric generator or a dynamo.
Concept: undefined >> undefined
A boy is standing at a distance of 3m in front of a plane mirror. The distance between the boy and his image is ______m.
Concept: undefined >> undefined
The image formed by a convex mirror is always ______.
Concept: undefined >> undefined
As you move an object always from a convex mirror, its image becomes ______
and moves towards ______.
Concept: undefined >> undefined
The field of view is maximum for ______.
Concept: undefined >> undefined
If the object is at infinity in front of a convex mirror the image is formed at infinity.
Concept: undefined >> undefined
Assertion: A real image cannot be produced by plane or convex mirror.
Reason: The focal length of a convex mirror is always taken as positive.
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What do you observe when an object is placed anywhere between P and infinity in front of a convex mirror?
Concept: undefined >> undefined
Why a convex mirror is preferred for rearview mirrors in cars?
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Higher-Order Thinking Skills:
A convex mirror is in water. What should be the change in its focal length?
Concept: undefined >> undefined
A liquid changes into a gas at a constant temperature known as its ______.
Concept: undefined >> undefined
Match the following:
| 1. | Stethoscope | a. | Repeated reflections |
| 2. | Echogram | b. | Multiple reflections |
| 3. | SONAR | c. | Ultrasonic waves |
| 4. | Reverberation | d. | Speed of underwater objects |
Concept: undefined >> undefined
The direction of the incident sound, the direction of reflected sound, and the normal are in different Planes.
Concept: undefined >> undefined
The first part of the ISS was launched by ______.
Concept: undefined >> undefined
Mention the uses of Robotic arms.
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Name a suitable method used to separate two immiscible liquids.
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Name a method used to separate two miscible liquids.
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What is solvent extraction?
Concept: undefined >> undefined
