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In two circles arcs at equal lengths subtend 60° and 75° angles at the centre. Then ratio of their radii is

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Important Questions on Circular Measure of Angles

EASY
UPSC CDS
IMPORTANT
SSC Advanced Maths Volume - I>Chapter 8 - Circular Measure of Angles>Model Questions>Q 21
A wire is folded after cutting from a circular wire of radius 7.5 cm, in such a way that it fits with the perimeter of a ring. If radius of the ring is 120 cm then angle subtended by the wire at the centre of the ring; in degree will be
EASY
UPSC CDS
IMPORTANT
SSC Advanced Maths Volume - I>Chapter 8 - Circular Measure of Angles>Model Questions>Q 22
The distance of the earth from the moon is 360000 km. If the angle subtended by the diametre of the moon at the cye of an observer is 30 ' then diameter of moon is
EASY
UPSC CDS
IMPORTANT
SSC Advanced Maths Volume - I>Chapter 8 - Circular Measure of Angles>Model Questions>Q 23
What is the angle subtended by the cylinder of a 50 cm long pendulum, if it's top makes an 10 cm long arc
EASY
UPSC CDS
IMPORTANT
SSC Advanced Maths Volume - I>Chapter 8 - Circular Measure of Angles>Model Questions>Q 24
Ahorse is thered with a rope to a pillar. Horse follows a circular path and covers a distance of 88 m with tightening the rope; in this horse sublends 72° angle at the centre. Length of the rope is
EASY
UPSC CDS
IMPORTANT
SSC Advanced Maths Volume - I>Chapter 8 - Circular Measure of Angles>Model Questions>Q 25
A wheel makes 180 revolutions per minute. It will revolve is 1 second through
HARD
UPSC CDS
IMPORTANT
SSC Advanced Maths Volume - I>Chapter 8 - Circular Measure of Angles>Model Questions>Q 26
If angular diameter of the moon is 30 . Then at what distance from eye a coin should be placed to hide the moon. The diameter of the coin is 2.2 cm.
MEDIUM
UPSC CDS
IMPORTANT
SSC Advanced Maths Volume - I>Chapter 8 - Circular Measure of Angles>Model Questions>Q 27
What is the angle between hour and minute hands of a watch at 7:20AM ?
EASY
UPSC CDS
IMPORTANT
SSC Advanced Maths Volume - I>Chapter 8 - Circular Measure of Angles>Model Questions>Q 28
The radian measure of angle formed between hour and minute hand at 3: 30.