Which objects are attracted strongly by a magnet? A Paper and cloth B Iron and steel C Wood and glass
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Chapter 24: Magnetism and Electromagnetism (Set-1)
Which natural mineral acts as a magnet? A Lodestone B Quartz crystal C Rock salt D Limestone Explanation Lodestone is
Continue readingChapter 23: Electricity – Circuits, Current and Effects (Set-5)
A bulb rated for a certain voltage is connected to a much higher voltage source; the first effect noticed is
Continue readingChapter 23: Electricity – Circuits, Current and Effects (Set-4)
In a series circuit with two identical bulbs, the main reason both bulbs glow dimmer is A Voltage becomes zero
Continue readingChapter 23: Electricity – Circuits, Current and Effects (Set-3)
In a circuit, conventional current direction is taken from A Negative to positive B Both directions C Positive to negative
Continue readingChapter 23: Electricity – Circuits, Current and Effects (Set-2)
In a circuit, the “path” must be complete for A Light to scatter B Heat to vanish C Sound to
Continue readingChapter 23: Electricity – Circuits, Current and Effects (Set-1)
In a simple dry cell, chemical energy mainly changes into A Heat energy B Light energy C Electrical energy D
Continue readingChapter 22: Sound (Set-5)
A tuning fork touches a table and sounds louder mainly because the table acts as A Heat source B Vacuum
Continue readingChapter 22: Sound (Set-4)
When a school bell rings, the sound is made because the bell A Gets heated B Absorbs light C Vibrates
Continue readingChapter 22: Sound (Set-3)
A tuning fork touching water shows sound is due to A Light reflection B Heat transfer C Mechanical vibration D
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