Hold that!
A block of mass M is attached to two unstretched springs of spring constant and respectively . the block is displaced to right through a distance x and is then released . find the speed of the block as it passes through the mean position, as it was in starting (whatever the velocity will be square that and then make it divide by the displacement ) ! .
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Isn't omega = whole root of ( net Spring constant / mass )
In this case the net Spring c. = k1+k2. And mass given to be M
Therefore omega should be = whole root( k1+k2/M)
And the ans. Should be =whole root(k1+k2/M) *x
But the correct option in your question is given to be (k1+k2/M)x
Pls correct the mistake or make the ans as 'none'