AP EAPCET 2021 20TH AUGUST MORNING SHIFT
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A glass flask weighting 390 g, having internal volume 500 cc just floats when half of it is filled with water. Specific gravity of the glass is
The number of protons, neutrons and electrons in \(_6^{13}\)C respectively are
If \(f(x)=2x^3+mx^2-13x+n\) and 2, 3 are the roots of the equation \(f(x)=0\), then the values of m and n are
The displacement of a particle starting from rest at \(t=0\) is given by \(s=9 t^2-2 t^3\). The time in seconds at which the particle will attain zero velocity is
Using Kjeldahl’s method over 1g of a soil sample, the ammonia evolved could neutralise 25 mL of 1 M H\(_2\)SO\(_4\). Then, the percentage of nitrogen present in the sample is
The number of ways in which 3 boys and 2 girls can sit on a bench so that no two boys are adjacent is