PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoRead the assertion and reason then select the best option::
1) Assertion: When a glass rod is rubbed with a silk cloth, the glass rod acquires a negative charge, and silk becomes positive.
Reason: The silk loses electrons; it has a deficiency of electrons and hence acquires positive charge. But, the glass rod has an excess of electrons. So, it becomes negatively charged.
2) Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries less voltage.
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