44.
Assertion (A) Light year and wavelength both measure distance.
Reason (R) Both have dimension of time.

45.
Match List-I with List-II and select the correct answer:
List-I (Physical quantities) List-II (Units)
a. Acceleration 1. Joule
b. Force 2. Newton second
c. Work done 3. Newton
d. Impulse 4. Metre/second2

49.
Match List-I with List-II and select the correct answer:
List-I List-II
a. Stethoscope 1. To measure intensity of light
b. Sphygmomanometer 2. To check purity of gold
c. Caratometer 3. To hear heart sound
d. Lux meter 4. To measure blood pressure

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