NCERT Class 12 Physics Answers and Solutions

Read and download NCERT Class 12 Physics Answers and Solutions in NCERT book for Class 12 Physics. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Physics textbook for Class 12 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 12 Physics to understand the answers of the exercise questions given at the end of this chapter

NCERT Book for Class 12 Physics Answers And Solutions

Class 12 Physics students should refer to the following NCERT Book Answers And Solutions in Class 12. This NCERT Book for Class 12 Physics will be very useful for exams and help you to score good marks

Answers And Solutions NCERT Book Class 12

CHAPTER 9
9.1 v = –54 cm. The image is real, inverted and magnified. The size of the image is 5.0 cm. As u ® f, v ® ¥; for u < f, image is virtual

9.2 v = 6.7 cm. Magnification = 5/9, i.e., the size of the image is 2.5 cm. As u ® ¥; v ® f (but never beyond) while m ® 0.

9.3 1.33; 1.7 cm

9.4 nga = 1.51; n wa = 1.32; ngw = 1.144; which gives sin r = 0.6181 i.e., r ~ 38°.

9.5 r = 0.8 × tan ic and sin 1/1.33 0.75 c i = @ , where r is the radius (in m) of the largest circle from which light comes out and ic is the critical angle for water-air interface, Area = 2.6 m2

9.6 n @ 1.53 and Dm for prism in water @ 10°

9.7 R = 22 cm

9.8 Here the object is virtual and the image is real. u = +12 cm (object on right; virtual)
(a) f = +20 cm. Image is real and at 7.5 cm from the lens on its right side.
(b) f = –16 cm. Image is real and at 48 cm from the lens on its right side.

9.9 v = 8.4 cm, image is erect and virtual. It is diminished to a size 1.8 cm. As u ® ¥, v ® f (but never beyond f while m ® 0). Note that when the object is placed at the focus of the concave lens (21 cm), the image is located at 10.5 cm (not at infinity as one might wrongly think).

9.10 A diverging lens of focal length 60 cm

9.11 (a) ve = –25 cm and fe = 6.25 cm give ue = –5 cm; vO = (15 – 5) cm = 10 cm,
fO = uO = – 2.5 cm; Magnifying power = 20 (b) uO = – 2.59 cm.
Magnifying power = 13.5.

9.12 Angular magnification of the eye-piece for image at 25 cm = 25/2.5 =1=11;|ue| =25/11cm=2.27cm vO=7.2cm
Separation = 9.47 cm; Magnifying power = 88

Please refer to attached file for NCERT Class 12 Physics Answers and Solutions

Chapter 01 Electric Charges and Fields
NCERT Class 12 Physics Electric Charges and Fields
Chapter 02 Electrostatic Potential and Capacitance
NCERT Class 12 Physics Electrostatic Potential and Capacitance
Chapter 03 Current Electricity
NCERT Class 12 Physics Current Electricity
Chapter 04 Moving Charges and Magnetism
NCERT Class 12 Physics Moving Charges and Magnetism
Chapter 05 Magnetism and Matter
NCERT Class 12 Physics Magnetism and Matter
Chapter 06 Electromagnetic Induction
NCERT Class 12 Physics Electromagnetic Induction
Chapter 07 Alternating Current
NCERT Class 12 Physics Alternating Current
Chapter 08 Electromagnetic Waves
NCERT Class 12 Physics Electromagnetic Waves
Chapter 09 Ray Optics and Optical Instruments
NCERT Class 12 Physics Ray Optics and Optical Instruments
Chapter 10 Wave Optics
NCERT Class 12 Physics Wave Optics
Chapter 11 Dual Nature of Radiation and Matter
NCERT Class 12 Physics Dual Nature of Radiation and Matter
Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits
NCERT Class 12 Physics Semiconductor Electronics Materials and Devices and Simple Circuits
Chapter 15 Communication Systems
NCERT Class 12 Physics Communication Systems
Part II Answers and Solutions
NCERT Class 12 Physics Answers and Solutions

Physics NCERT Book Class 12 Answers And Solutions

The above NCERT Books for Class 12 Physics Answers And Solutions have been published by NCERT for latest academic session. The textbook by NCERT for Answers And Solutions Physics Class 12 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Answers And Solutions NCERT etextbooks as the exams for Class 12 Physics are always asked as per the syllabus defined in these ebooks. These Class 12 Answers And Solutions book for Physics also includes collection of question. We have also provided NCERT solutions for Class 12 Physics which have been developed by teachers of StudiesToday.com after thorough review of the latest book and based on pattern of questions in upcoming exams for Class 12 students.

NCERT Book Class 12 Physics Answers And Solutions

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