9,793 previous year CISCE Board - ICSE Class 9 questions, grouped by year, with answers and solutions.
Refer to the Case Study 'Case Study: Optical Fibers and Total Internal Reflection in Medical Endoscopy' to answer:
Calculate the critical angle $\theta_c$ for the optical fiber described in the passage ($n_1 = 1.52, n_2 = 1.48$).
ICSE Biology: What biological mechanism is detailed in 'Movement and Locomotion: Skeleton Types, Bones and Joints'?
Refer to the Case Study 'Case Study: Parabolic Cable Geometry in Civil Engineering Suspension Bridges' to answer:
What geometric property distinguishes the vertex of the upward-opening parabola $y = ax^2 + c$ ($a > 0$)?
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): A concave mirror can form both real inverted images and virtual erect images.
Reason (R): When an object is placed between the pole and focus of a concave mirror, it forms an erect, magnified, virtual image.
Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:
Which statutory enactment was passed by the Indian Parliament following the Bhopal gas disaster and oleum gas leak?
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