Column I gives some devices and Column II gives some processes on which the functioning of these devices depend. Match the devices in Column I with the processes in Column II and indicate your answer by darkening appropriate bubbles in the matrix given i

Question

Column I gives some devices and Column II gives some processes on which the functioning of these devices depend. Match the devices in Column I with the processes in Column II and indicate your answer by darkening appropriate bubbles in the $4 \times 4$ matrix given in the ORS. [2007]

	Column I		Column II
(A)	Bimetallic strip	(p)	Radiation from a hot body
(B)	Steam engine	(q)	Energy conversion
(C)	Incandescent lamp	(r)	Melting
(D)	Electric fuse	(s)	Thermal expansion of solids

Smart Achievers · Accepted Answer

(1)

$A \to s$

Bimetallic strip is based on thermal expansion of solids, i.e., $l = l_{0} (1 + α t)$

$B \to q$

Steam engine is based on energy conversion.

$C \to p, q$

Incandescent lamp is based on energy conversion, i.e., electrical energy into light energy and radiation from a hot body.

$D \to q, r$

Electric fuse is based on melting of the fuse material, which in turn depends on the heating effect of current.

Solution

1 $A \to s, B \to q, C \to p, q, D \to q, r$

2 $A \to q, r, B \to q, C \to p, q, D \to s$

3 $A \to q, r, B \to p, q, C \to q, D \to s$

4 $A \to p, q, B \to q, r, C \to q, D \to s$

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Solution

1 A→s, B→q, C→p,q, D→q,r

2 A→q,r, B→q, C→p,q, D→s

3 A→q,r, B→p,q, C→q, D→s

4 A→p,q, B→q,r, C→q, D→s

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1 $A \to s, B \to q, C \to p, q, D \to q, r$

2 $A \to q, r, B \to q, C \to p, q, D \to s$

3 $A \to q, r, B \to p, q, C \to q, D \to s$

4 $A \to p, q, B \to q, r, C \to q, D \to s$