Which of the following is used for hearing the sound of heart and lungs...? Mcqs

PPSC Past Papers

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Which of the following is used for hearing the sound of heart and lungs...?

(A) Steroscope
(B) Stethoscope

(C) Oscillator
(D) Oncolator

✅ Correct Answer: Stethoscope

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________...?

(A) The hair barging against the charged comb
(B) Small electric sparks

(C) The rubbing of the comb with the hair
(D) None of the above

✅ Correct Answer: Small electric sparks

Comments

Source: This question is taken from the Everyday Science

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