Q16.The focal length 𝑓 is related to the radius of curvature 𝑟 of the spherical convex mirror by: 1 1 (1) 𝑓= - 2𝑟 (2) 𝑓= + 2𝑟 (3) 𝑓= 𝑟 (4) 𝑓= - 𝑟
What This Question Tests
This question tests the ability to analyze a circuit with multiple cells connected with opposing EMFs and internal resistances, and calculate the potential difference between two points.
Concepts Tested
Formulas Used
I = (E_net) / (R_eq)
V_XY = E - Ir
📚 NCERT Sections This Tests
9.8 — A Beam Of Light Converges At A Point P. Now A Lens Is Placed In The
Physics Class 12 · Chapter 9
9.8 A beam of light converges at a point P. Now a lens is placed in the path of the convergent beam 12cm from P. At what point does the beam converge if the lens is (a) a convex lens of focal length 20cm, and (b) a concave lens of focal length 16cm?
9.7 — Double-Convex Lenses Are To Be Manufactured From A Glass Of
Physics Class 12 · Chapter 9
9.7 Double-convex lenses are to be manufactured from a glass of refractive index 1.55, with both faces of the same radius of curvature. What is the radius of curvature required if the focal length is to be 20cm?
3.1 — The Storage Battery Of A Car Has An Emf Of 12 V. If The Internal
Physics Class 11 · Chapter 3
3.1 The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Ω, what is the maximum current that can be drawn from the battery?
📋 Question Details
- Chapter
- Current Electricity
- Topic
- Cells in Series and Kirchhoff's Laws
- Year
- 2021
- Shift
- 24 Feb Shift 1
- Q Number
- Q16
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 3: Current Electricity
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