Complete GATE PI 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 28–30 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 10 of 22

Question 18

Open question
PINAT1 markNeeds review
The probabilities of occurrence of events F and G are P(F) = 0.3 and P(G) = 0.4, respectively. The probability that both events occur simultaneously is P(F∩G) = 0.2. The probability of occurrence of at least one event P(F∪G) is ______

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Question 19

Open question
PINAT1 markNeeds review
A flywheel in the form of a solid circular disc of radius 100 mm and uniform thickness has a mass of 10 kg. If it is rotating at a uniform angular velocity of 20 rad/s, the kinetic energy (in J) of the flywheel is ______

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Question 20

Open question
PINAT1 markNeeds review
A cylindrical wooden block of length 50 cm is floating in water in such a way that its axis is vertical. The densities of wood and water are 800 kg/m³ and 1000 kg/m³, respectively. The submerged depth, i.e., depth of immersion (in cm) of the cylinder is ______

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