Q21.An object is projected in the air with initial velocity u at an angle θ. The projectile motion is such that the horizontal range R, is maximum. Another object is projected in the air with a horizontal range half of the range of first object. The initial velocity remains same in both the case. The value of the angle of projection, at which the second object is projected, will be _____ degree.
What This Question Tests
This question tests the understanding of projectile motion, specifically the formula for horizontal range and its maximization condition, then requires calculating an angle for a modified range.
Concepts Tested
Formulas Used
R = (u² sin(2θ))/g
📚 NCERT Sections This Tests
9.21 — At What Angle Should A Ray Of Light Be Incident On The Face Of A Prism
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9.21 At what angle should a ray of light be incident on the face of a prism of refracting angle 60° so that it just suffers total internal reflection at the other face? The refractive index of the material of the prism is 1.524.
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2.5 A parallel plate capacitor with air between the plates has a capacitance of 8 pF (1pF = 10–12 F). What will be the capacitance if the distance between the plates is reduced by half, and the space between them is filled with a substance of dielectric constant 6?
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📋 Question Details
- Chapter
- Kinematics
- Topic
- Projectile motion
- Year
- 2022
- Shift
- 29 Jul Shift 1
- Q Number
- Q21
- Type
- Numerical
- NCERT Ref
- Class 11 Physics Ch 4: Motion in a Plane
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