Which of the following is/are not correct?

(i) The basic unit of time is second.
(ii) Distance between two cities is measured in kilometres.
(iii) The speed of a train is expressed in m/h.

ii and iii only

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iii only

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i and ii only

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i only

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Solution

The correct option is B iii only

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Similar questions

(i) The basic unit of time is second.

(ii) Every object moves with a constant speed.

(iii) Distances between two cities are measured in kilometres.

(iv) The time period of a given pendulum is constant.

(v) The speed of a train is expressed in m/h.

Question 2 (iii)
Which of the following are not correct?
(iii) Distances between two cities are measured in kilometres.

Question 2 (i)
Which of the following are not correct?
(i) The basic unit of time is second.

The distances between the various celestial objects are usually expressed in the unit of:

(a) kilometres

(b) light minutes

(d) light seconds

Which of the following distance-time graphs shows a truck moving with speed which is not constant?

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