Morning vs Night : Kya time hota hai padhne ke liye best?

The graph of displacement vs time for a particle moving along a straight line is as shown. The best option for the corresponding velocity - time graph will be:

The graph of displacement vs time for a particle moving along a straight line is as shown. The best option for the corresponding velocity - time graph will be:

Hamare D.N.A ki kya lenght hoti hai pata lagao Doubtnut ke saath

Directions : In the following questions, you have two brief passages with 5 questions following each passage. Read the pas sages carefully and choose the best answer to each question out of the four alternatives. PASSAGE-II (9. Nos. 196 to 200) Two or three days and nights went by, I reckon I might say they swum by, they slid along so quiet and smooth and lovely. Here is the way we put it in the time. It was a monstrous big river down there - sometimes a mile and a half wide, we ran nights, and laid up and hid daytimes, soon as night was most gone we stopped navigating and tied up - nearly always in the dead water under a towhead, and then cut young cottonwoods and willows, and hid the raft with them. Then we set out the lines. Next we slid into the river and had a swim, so as to freshen up and cool off, then we set down on the sandy bottom where the water was about knee deep and watched the daylight come. Not a sound anywhere - perfectly still – just like the whole world was asleep only sometimes the bullfrogs a cluttering maybe. The first thing to see, looking away over the water was a kind of dull line - that was the woods on t' other side: you couldn't make nothing else out, then a pale place in the sky, then more pale ness spreading around, then the river softened up away off, and wasn't black any more, but gray: you could see little dark spots drifting along ever so far away - trading scows and such things and long black streaks -rafts, sometimes you could hear a sweep creaking or jumbled up voices, it was so still and sounds come so far and by and by you could see a streak on the water which you know by the look of the streak that there's a snag there in a swift current which breaks on it and makes that streak look that way. In the stillness of the night