कोई मानव हृदय एक मिनट में औसतन 75 बार धड़कन करता पाया जाता है। इसकी आवृत्ति तथा आवर्तकाल परिकलित कीजिए।
30 questions across 4 question groups — pick any mix to generate a भौतिक विज्ञान paper with step-by-step answer keys.
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Answer: C.
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Pick question groups from the list above, set marks and difficulty, and export a branded PDF with step-by-step answer keys. First 3 chapters free — no signup.