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IGCSE O Level Physics Practice Test 148

# Physical Quantities and SI Unit MCQ Questions and Answers PDF - 148

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## Physical Quantities & SI Unit MCQ with Answers : Quiz 148

MCQ 736: SI unit for light intensity is

A) Candela
B) Watts
C) Joules
D) Kelvin

MCQ 737: Choose the wrong, the size of the image formed in a plane mirror

A) could be taller than the mirror
B) the height of the image depends on the object distance
C) the width of the image is the same as of the object
D) the image height depends on the object height

MCQ 738: The direction about the pivot is

A) Clockwise
B) Anti-clockwise
C) Both clockwise and anti-clockwise
D) Pivot doesn't move

MCQ 739: Gold has the melting point of

A) 1020 °C
B) 1033 °C
C) 1054 °C
D) 1067 °C

MCQ 740: As the speed decreases if we change the medium of electromagnetic waves from air to water, the frequency

A) also decreases
B) also increases
C) remains same
D) may increase or decrease

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