Assertion : "Ultrasound" (in sonography) is the sound beyond the range of human hearing.
Reason : Vibration of crystals is the source of ultrasound.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

If both assertion and reason are true but reason is not the correct explanation of the assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

If assertion is true but reason is false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

If the assertion and reason both are false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

If assertion is false but reason is true.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A If both assertion and reason are true and the reason is the correct explanation of the assertion.
Answer is option A.
Ultrasound uses sound beyond the range of human hearing to penetrate tissue. Some of the risks like premature births, risk to heath of mother and child can be overcome through sonography. Ultrasound imaging systems uses piezoelectric crystals. Piezoelectric crystals vibrate in response to an alternating voltage to produce ultrasound.

Suggest Corrections

Similar questions

\to τ = \to r \times \to F b u t \to τ \neq \to F \times \to r .

Read the assertion and reason carefully to mark the correct option out of the options given below :

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(d) If the assertion and reason both are false.

(e) If assertion is false but reason is true.

Assertion: Acetic acid does not undergo haloform reaction.

Reason: Acetic acid has no alpha hydrogens.

N a_{2} C r_{2} O_{7}

N a_{2} C r_{2} O_{7}

Join BYJU'S Learning Program