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Biology के हैरान कर देने वाले FACTS

Class 10 Maths (Hindi) | Chapter 3 | दो चर वाले रैखिक समीकरण युग्म | Important Questions | Quick Revision

CBSE Class 10 Hindi - लेखन Most Important Questions | 26 Marks Most Expected Questions | CBSE Board 2020

In a school, 4% of the students did not appear for the annual exams. 10% of 16 students who appeared for the exams could not pass the exam. Out of the remaining students, 50% got distinction marks and 432 students passed the exam but could not get distinction marks. The total number of students in the school is: एक विद्यालय में, 4% छात्र वार्षिक परीक्षा में शामिल नहीं हुए | परीक्षा में शामिल होने वाले 10% छात्र परीक्षा पास नहीं कर सके | शेष छात्रों में से, 50% को डिस्टिंक्शन अंक मिले तथा 432 छात्र परीक्षा तो पास कर गए लेकिन उन्हें डिस्टिंक्शन अंक नहीं मिले | विद्यालय में छात्रों की कुल संख्या कितनी है ?

Two planets of equal mass orbit a much massive star (figure). Planet m_(1) moves in circular orbit of radius 1 xx 10^(8) km with period 2 yr . Planet m_(2) moves in an elliptical orbit with closed distance r_(1) = 1 xx 10^(8) km and farthest distance r_(2) = 1.8 xx 10^(8) km , as shows. (a) Using the fact that the mean radius of an elliptical orbit is the length of the semi-major axis, find the period of m_(2)'s orbit. (b) Which planet has the greater speed at point P ? Which has the greater total energy? (c ) Compare the speed of planet m_(2) at P with that at A .

CBSE Class 10 Hindi Most Important Questions | 5 Mark Most Expected Questions | CBSE Board 2020

Hindi has emerged as the 10th most powerful language on the planet according to the world Economic Forum's Language Index Ranking. Which language has been ranked as the most powerful?

In a X th standard examination out of the 100 students appeared 50 passed in all the subjects, 20 passed in science subjects only and 10 passed in languages only. All the remaining students failed in all subjects. Which of the following represents this fact?