Assertion : Echocardiography serves many functions.
Reason : Echocardiography can allow identification of mass lesions within and adjacent heart.

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

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

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If assertion is true but reason is false.

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If the assertion and reason both are false.

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If assertion is false but reason is true.

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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.
An echocardiogram (echo=sound + card=heart + gram=drawing) is an ultrasound test that can evaluate the structures and function of the heart. An echocardiography can detect problems with the heart such as enlargement, abnormalities in motion of the heart wall, blood clots, and heart valve abnormalities. It also measures the strength of the heart muscle. It can also be used to detect mass lesion within and adjacent the heart.

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\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.

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Reason: Acetic acid has no alpha hydrogens.

Reason : Work function $h f_{0}$ where $f_{0}$ is the threshold frequency.

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