InstaQB

Home
Institutions
- Institutions
  
  Polytechnic Colleges
  
  Medical Colleges
  
  Arts & Science Colleges
  
  Universities
  
  Engineering Colleges
  
  Agricultural Colleges
  
  Research Institute
  
  Law Colleges
  
  Audiology and Speech Colleges
  
  Business & Management colleges
  
  Nursing colleges
  
  Hotel Management institutes
  
  Aeronautical Colleges
  
  Bachelor's Degree
Syllabus
Courses
Stateboard
- 12th Standard English Medium
  
  Maths
  
  Physics
  
  Chemistry
  
  Biology
  
  Computer Science
  
  Business Maths
  
  Economics
  
  Commerce
  
  Accountancy
  
  History
  
  Computer Applications
  
  Computer Technology
  12th Standard Tamil Medium
  
  உயிரியல்
  
  கணினி பயன்பாடுகள்
  
  கணினி அறிவியல்
  
  வணிகக் கணிதம்
  
  வணிகவியல்
  
  பொருளியல்
  
  கணிதவியல்
  
  வேதியியல்
  
  இயற்பியல்
  
  கணினி தொழில்நுட்பம்
  
  வரலாறு
  
  கணக்குப்பதிவியல்
  11th Standard English Medium
  
  Maths
  
  Commerce
  
  Economics
  
  Biology
  
  Business Maths
  
  Accountancy
  
  Computer Science
  
  Physics
  
  Chemistry
  
  Computer Applications
  
  History
  
  Computer Technology
  
  Bio - Zoology
  11th Standard Tamil Medium
  
  கணிதவியல்
  
  உயிரியல்
  
  பொருளியல்
  
  இயற்பியல்
  
  வேதியியல்
  
  வணிகக் கணிதம்
  
  கணினி அறிவியல்
  
  கணக்குப்பதிவியல்
  
  வணிகவியல்
  
  கணினி பயன்பாடுகள்
  10th Standard English Medium
  
  Mathematics
  
  Science
  
  Social Science
  
  9th Standard English Medium
  
  Mathematics
  
  Science
  
  Social Science
  
  8th Standard English Medium
  
  Mathematics
  
  Science
  
  Social Science
  7th Standard English Medium
  
  Mathematics
  
  Science
  
  Social Science
ICSE/ISC
- Class XII
  
  Mathematics
  
  Physics
  
  Accountancy
  
  Biology
  
  History
  
  Geography
  
  Psychology
  
  chemistry
  
  Economics
  
  Computer Science
  
  Political Science
  
  Business Studies
  Class XI
  
  Accountancy
  
  Chemistry
  
  Mathematics
  
  Biology
  
  Geography
  
  Physics
  
  History
CBSE
- 12Th Standard
  
  Physics
  
  Chemistry
  
  Maths
  
  Biology
  
  History
  
  Economics
  
  Commerce
  
  Geography
  
  Socialogy
  
  Business Studies
  
  Computer Science
  
  Biotechnology Class
  
  Political Science
  
  Home Science
  11Th Standard
  
  Physics
  
  Chemistry
  
  Maths
  
  Biology
  
  History
  
  Economics
  
  Commerce
  
  Socialogy
  
  Business Studies
  
  Geography
  
  Home Science
  
  Computer Science
  
  Biotechnology Class
  
  Political Science
  10Th Standard
  
  Physics
  
  Chemistry
  
  Biology
  
  Mathematics
  
  Economics
  
  Geography
  
  History & Civics
  
  Computer Application
  9Th Standard
  
  Physics
  
  Chemistry
  
  Biology
  
  mathematics
  
  Computer Application
  
  Economics
  
  Geography
  
  History & Civics

11th Physics Monthly Test - 1( Nature of Physical World and Measurement)

MABS Institution

11th Physics Monthly Test - 1( Nature of Physical World and Measurement)-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

The mean radius of a wire is 2 mm. Which of the following measurements is most accurate?

1.9 mm
2.25 mm
2.3 mm
1.83 mm

Random error can be eliminated by

careful observation
eliminating the cause
taking mean
measuring with more than one instrument

Heat produced by a current is obtained a relation H = I²RT. If the errors in measuring these quantities current, resistance, time are 1%, 2%, 1% respectively then total error in calculating the energy produced is________________

2%
4%
5%
6%

If x = at + bt², where x is the distance travelled by the body in kilometers while t is the time in seconds, then the units of b is

km/s
km s
km/s²
km s²

One parsec is______

3.153\(\times\)10⁷ m
3.26\(\times\)10¹⁵ m
30.84\(\times\)10¹⁵ m
9.46\(\times\)10¹⁵ m

Dimensions [M L^-1T^-1] are related to_____________

torque
work
energy
Coefficient of viscosity

One atomus equal to ________

100 ms
\(\frac { 1 }{ 6.25 } \) ms
160 ms
160 ms

The length and breadth of a rectangle are 6.01 m and 12 m. Taking the significant figure into account the area of the rectangle is:

72.00 m²
72.1 cm²
72 m²
72.12 m²

The fractional error in the n^th power of a quantity is_________.

\(\frac{\triangle Z}{Z}=n\frac{\triangle A}{A}\)
\(\frac{Z}{\triangle A}=n\frac{A}{\triangle A}\)
\(\frac{\triangle Z}{Z}=\frac{1}{n}\frac{\triangle A}{A}\)
\(\frac{Z}{\triangle Z}=\frac{1}{n}\frac{A}{\triangle A}\)

Equivalent of one joule is____________

Nm²
kg m² s^-2
kg m s^-1
N kg m²

Part - B

Generic 2 - Answer All Question

Define one parsec.

What is the SI unit of temperature and define it.

What are derived units?

What is Thermodynamics?
Discuss the relation of physics with geology.

Round off the following numbers as indicated 12.653 up to 3 digits.

State the number of significant figures in 0.2370 m

A physical quantity x is given by x =\({a^2b^3\over c\sqrt{d}}\) .If the percentage errors of measurement in a,b, c and d are 4%, 2%, 3% and 1% respectively, then calculate the percentage error in the calculation of x.

If a mass of a proton is 1.67 x 10^-27 kg, how many protons will be present in 1 kg?
Given data:
Mass of a proton = 1.67 x 10^-27 kg
1.67 x 10^-27 kg is mass of 1 proton.

Define one steradian.

Part - C

Generic 3 - Answer All Question

"The scope of physics is really vast" - comment.

The relative density of a material is found by weighing the body first in air and then in water. If the weight in air is \((10.0\pm0.1)N\) and weight and water is \((0.5\pm0.1)N,\) what would be the maximum percentage error in relative density?

In a physical units, how many units are there in 1 metre?
1 micron (\(\mu\)) = 10^-6 m
Given data:
1 AU = 1.496 x 10¹¹m
1 ly = 9.467 x 10¹⁵m
1 mm = 10^-6m
1 parsec = 3.08 x 10¹⁶m

Distinguish between fundamental and derived units.

How are theoretical predictions useful?
Magnitude of force experienced by an object moving with speed v is given by F = kv². Find dimensions of k.

Find the num er of erg in one Joule.

How can we classify variables and constants on the basis of dimension. Give example for each type?

If the unit of force is 100N, unit of length is 10m and unit of time is 100s. What is the unit of Mass in this system of units ?

The unit of length convenient on the atomic scale is known as angstrom and is denoted by \(\mathring{A}\) . The size of a helium atom is about 30 picometer. What is the total atomic volume in metre³ of one mole of helium atom?

Part - D

Generic 5 - Answer All Question

What do you mean by propagation of errors? Explain the propagation of errors in addition and multiplication.

Explain propagation of errors in the difference of two quantities and also in the division of two quantities.

The value Gin CGS system is 6.67 x 10^-8 dyne cm² g^-2. Calculate the value in SI units.

The frequency of vibration of a string depends of on, (i) tension in the string (ii) mass per unit length of string, (iii) vibrating length of the string. Establish dimensionally the relation for frequency.

The force F acting on a body moving in a circular path depends on mass of the body (m), velocity (v) and radius (r) of the circular path. Obtain the expression for the force by dimensional analysis method. (Take the value of k = 1)

The parallax of a heavenly body measured from two points diametrically opposite on equator of earth is 2'. Calculate the distance of the heavenly body. [Given radius of the earth = 6400 km] [1" = 4.85 x 10^-6rad]

Briefly explain the different types of errors and their causes with an example. How can these error be minimised?
A capacitor of capacitance C = 3.0 ± 0.1 \(\mu \)F is charged to a voltage of V = 18 ± 0.4 Volt. Calculate the charge Q [Use Q = CV].

Write the rules for rounding off? (or) Explain the rules framed for rounding off the numbers with the examples.

How will you determine the distance of moon from earth using parallax method?

Comment

Add Comment

Tamilnadu Stateboardszs - Class