383 Views

important questions for class 10 nbse science and mathematics


Marai Zlng 12th Mar, 2022
Answer (1)
Rajni 12th Mar, 2022

Hello aspirant,

Hope you are doing great...!!


Mathematics:-

1) Alpha and Beta are the roots of the quadratic polynomial p (x) = x 2 - (k + 6)x + 2 (2k - 1).
Find the value of k, if Alpha plus Beta is equal to 1/2 multiplied by alpha-beta.
2) Use Euclid's division algorithm to find H.C.F. of 870 and 225.
3) An umbrella has 10 ribs that are equally spaced. Assuming the umbrella to be
a flat circle of radius 40 cm, find the area between two consecutive ribs of the
umbrella.
4) The angle of depression of a car parked on the road from the top of a 150 m
high tower is 30°. Find the distance of the car from the tower (in meters).

5) In a seminar, the number of participants in Hindi, English, and Mathematics are 60, 84, and 108 respectively. Find the minimum number of rooms required if in each room the same number of participants are to be seated and all of them
being in the same subject.


Science:-

1) What is meant by the potential difference between two points?
2) Why do fish die when taken out of water?
3) An electric heater is used on a 220-V supply and it consumes a current of 3.4
A. Calculate: (i) its power and (ii) its resistance when it is in use.
4)We hear and read about female foeticide which is a wrong practice. In
some families, be it rural or urban, females are tortured for giving birth to a
girl child. They do no t seem to understand the scientific reason behind the
birth of a boy or a girl. In your opinion, the approach of society towards the
mother in this regard is correct or not? Explain the scientific reason.


Hope this helps you!

All the best!

Related Questions

TAPMI MBA 2025 | Technology M...
Apply
MBA Admission Open in Technology Management and AI & Data Science | NAAC A++ | Institution of Eminence | Assured Scholarships | Application Deadli...
Amity University, Noida Law A...
Apply
700+ Campus placements at top national and global law firms, corporates, and judiciaries
UPES Integrated LLB Admission...
Apply
Ranked #28 amongst Institutions in India by NIRF | Ranked #1 in India for Academic Reputation by QS University Rankings | 16.6 LPA Highest CTC
Great Lakes PGPM & PGDM 2025
Apply
Admissions Open | Globally Recognized by AACSB (US) & AMBA (UK) | 17.3 LPA Avg. CTC for PGPM 2024 | Extended Application Deadline: 10th Feb 2024
Amity University Noida B.Tech...
Apply
Among Top 30 National Universities for Engineering (NIRF 2024)
ISBR Business School PGDM Adm...
Apply
Last Date of Applications- 28th January | 250+ Companies | Highest CTC 16 LPA | Average CTC 8 LPA | Ranked as Platinum Institute by AICTE for 6 yea...
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books