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Acharya Shivpujan Sahay (9 August 1893 – 21 January 1963) was a noted Hindi and Bhojpuri novelist, editor and prose writer.He contributed in pioneering modern trends. His auto-biographical story "Mata ka Aanchal" ("Mother's Embrace") also featured in the NCERT Hindi textbook, Kritika, for the tenth grade. [1]
Hindi: Maa Ka Aanchal is a 1970 Bollywood drama film directed by Jagdev Bhambri. [1] The film stars Sanjeev Kumar and Leela Mishra. [2] Plot
Multiple choice questions lend themselves to the development of objective assessment items, but without author training, questions can be subjective in nature. Because this style of test does not require a teacher to interpret answers, test-takers are graded purely on their selections, creating a lower likelihood of teacher bias in the results. [8]
Consequently, for external lens surfaces as diagrammed above, R 1 > 0 and R 2 < 0 indicate convex surfaces (used to converge light in a positive lens), while R 1 < 0 and R 2 > 0 indicate concave surfaces. The reciprocal of the radius of curvature is called the curvature. A flat surface has zero curvature, and its radius of curvature is infinite.
The bottom example depicts a real lens with spherical surfaces, which produces spherical aberration: The different rays do not meet after the lens in one focal point. The further the rays are from the optical axis, the closer to the lens they intersect the optical axis (positive spherical aberration). (Drawing is exaggerated.)
with units of parsecs per cubic centimetre (1 pc/cm 3 = 30.857 × 10 21 m −2). [13] Typically for astronomical observations, this delay cannot be measured directly, since the emission time is unknown. What can be measured is the difference in arrival times at two different frequencies.
where S 1 is the distance from the object to the lens, θ 2 is the distance from the lens to the image, and f is the focal length of the lens. In the sign convention used here, the object and image distances are positive if the object and image are on opposite sides of the lens.
Maila Aanchal (Hindi: मैला आँचल; English: The Soiled Border) is a 1954 Hindi novel written by Phanishwar Nath Renu. [1] [2] After Premchand's Godan, 'Maila Anchal' is regarded as the most significant Hindi novel in the Hindi literature tradition. [3] [4] It is one of the greatest examples of "Anchalik Upanyas" (regional novel ...