The edge length of a face centered cubic cell of an ionic substance is 508 pm. If the radius of the cation is 110 pm, the radius of the anion is
A thin uniform rod of length l and mass m is swinging freely about a horizontal axis passing through its end. Its maximum angular speed is ω. Its centre of mass rises to a maximum height of
A working transistor with its three legs marked P, Q and R is tested using a multimeter. No conduction is found between P and Q. By connecting the common (negative) terminal of the multimeter to R and the other (positive) terminal to P or Q, some resistance is seen on the multimeter. Which of the following is true for the transistor ?
Let a, b, c be such that b(a+c)=0. If ∣aa+1a−1−+1b−1−1c+1∣+∣∣a+1b+1c−1a−1b−1c+1(−1)n+2a(−1)n+1b(−1)nc∣∣=0then the value of n is
In which of the following arrangements, the sequence is not strictly according to the property written against it ?
Statement-I: For a mass M kept at the centre of a cube of side gravitational field passing through its sides is 4π GM. And
Statement-II : If the direction of a field due to a point source is radial and its dependence on the distance 'r' for the source is given as 1/r2, its flux through a closed surface depends only on the strength of the source enclosed by the surface and not on the size or shape of the surface.