Subject :NSO Class : Class 9
The speed of a train increases at a constant rate
a from zero to v, and then remains constant for an interval, and finally decreases to zero at a constant rate
b. If L be the total distance travelled, then the total time taken is
Subject :NSO Class : Class 9
A particle is moving in a straight line with initial velocity
u and uniform acceleration f. If the sum of the distances travelled in
tth and (t +
1)th seconds is 100 cm, then its
velocity after t seconds in cm/s is
Ans 1:
Class : Class 9
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Subject :NSO Class : Class 4
Ans 1: (Master Answer)
Class : Class 1
The correct answer is C.
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Subject :NSO Class : Class 4
Which square must be shaded so that the
figure has a line of symmetry ?
Ans 1:
Class : Class 5
the answer is really wrong.
Ans 2:
Class : Class 4
how is it possible that answer is 1
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Subject :NSO Class : Class 8
Ans 1:
Class : Class 8
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Subject :NSO Class : Class 9
A particle of mass 0.3 kg is subjected to a force
F = kx with k = 15 N/m and
x being its distance from the origin. What will be its initial acceleration if it is released from
a point 20 cm away from the origin ?
Ans 1:
Class : Class 9
m=0.3kg here ,f=kx k given 15N/m x, is distance traverse on subjecting f . such that f=kx , so ma=kx , 0.3×a=15N/x ,0.3×a=15N/m×0.2m (x= 20cm) so , a= 10m/s2
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Subject :NSO Class : Class 3
In desert plants, leaves modify into thorns. How do thorns help a plant?Ans 1:
Class : Class 3
Because stem does photo -synthesis the leaves are used for storing water instead that's why (B) They store water is correct
Ans 2:
Class : Class 3
B
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Subject :NSO Class : Class 2
Which of the following is not a bird?
Ans 1:
Class : Class 5
Bat is not a bird because it has no wings.It's wings are actually it's hands(still it can fly with it).
Ans 2:
Class : Class 5
Bat is not a bird because it has no wings.It's wings are actually it's hands(still it can fly with it).
Ans 3:
Class : Class 5
Bat is not a bird because it has no wings.It's wings are actually it's hands(still it can fly with it).
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Subject :NSO Class : Class 9
A particle is acted upon by a constant force, the magnitude of which is always
perpendicular to the velocity of particle. The motion of particle takes place in same plane. From
the above statement it implies
Ans 1:
Class : Class 9
Correct answer is opt(D)
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Subject :NSO Class : Class 9
