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A cylinder of cross sectional radius 1 cm and height 4 cm is heated from 0⁰C to 100⁰C. If the coefficient of linear expansion is α=4×10–4/⁰C. What will be the increase in the volume of the cylinder? अनुप्रस्थ त्रिज्या 1 सेमी. तथा ऊँचाई 4 सेमी. के बेलन (सिलिंडर) का ताप 0⁰C से 100⁰C बढ़ाया जाता है। यदि अनुदैर्घ्यं (रैखिक) प्रसार गुणांक α = 4×10–4/⁰C, हो तो बेलन का आयतन कितना बढ़ जायेगा?

‘उमा से पढ़ा नहीं जाता’ वाक्य में कौन सा वाच्य है?

L, M, N, O, P and Q are sitting around a circular table facing the centre (not necessarily in the same order). M is sitting to the immediate right of Q. L is sitting to the immediate left of O. Q is sitting to the immediate right of O. P is sitting to the immediate left of L. Who is sitting to the immediate right of M?

Which two signs should be interchanged to make the given equation correct? 32 + 24 × 4 ÷ 16 – 64 = 90

On a colour coded resistor, the tolerance band is of silver colour. What could be the percentage variation in the resistance value? कलर-कोडेड प्रतिरोधक पर, सह्यता बैंड सिल्वर कलर का है। प्रतिरोध मान में प्रतिशत भिन्नता कितनी हो सकती है?