XII Physics 2025 A thin pencil of length (f/4) is placed coinciding with the principal axis of a скачать в хорошем качестве

XII Physics 2025 A thin pencil of length (f/4) is placed coinciding with the principal axis of a

(i) A thin pencil of length (f/4) is placed coinciding with the principal axis of a mirror of focal length f. The image of the pencil is real and enlarged, just touches the pencil. Calculate the magnification produced by the mirror. (ii) A ray of light is incident on a refracting face AB of a prism ABC at an angle of 45°. The ray emerges from face AC and the angle of deviation is 15°. The angle of prism is 30°. Show that the emergent ray is normal to the face AC from which it emerges out. Find the refraction index of the material of the prism. 12th Physics CBSE PYQ 2025 CBSE 12th Physics Solution Class 12th CBSE Physics Class XII CBSE Physics CBSE 12th PYQ 2025 Physics CBSE 12th PYQ 2024 Physics CBSE with PYQ 2023 2025 Physics 12th PYQ CBSE Solution Physics 12th CBSE sample paper solution Physics Class 12th CBSE Physics Previous year questions solution Class 12th CBSE Physics Previous year questions solution CBSE Maths 12th PYQ Solution Physics #cbseboard #cbse #cbseclass12 #maths #physics #study #boardexam #class12th #examination #education #science #physics