11th Physics Monthly Test - 2( Nature of Physical World and Measurement)

MABS Institution

11th Physics Monthly Test - 2( Nature of Physical World and Measurement)-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

The ratio of one nanometer to one micron is__________________

10^-3
10³
10^-9
10^-6

The number of significant figures in 0.06900 is ________

Zero error of an instrument is a______________.

Systematic error
Random error
Gross error
Both (a) and (b)

The word physics is derived from the word_______

scientist
fusis
fission
fusion

A certain body weighs 22.42 g and has a measured volume of 4.7cc. The possible error in thc measurement of mass and volume are 0.0 1 g and 0.1 cc. Then maximum error in the density will be

22%
2%
0.2%
0.02%

The unit of surface tension

MT^-2
Nm^-2
Nm
Nm^-1

Universal time is based on:

rotation of the earth on its own axis
earth's orbital motion around the sun
vibration of cesium atom
oscillation of quartz clock

The pressure on a square plate is measured by measuring the force on the plate and the length of the sides of the plate by using the formula p =\(F\over l^2\) .If the maximum errors in the measurement of force and length are 4% and 2% respectively, then the maximum error in the measurement of pressure is _________________

Imperfections in experimental procedure gives______errors.

random
gross
systematic
personal

SI unit of the universal constant of gravitation (G) is,

kg^-2 m^-2
kg ms^-1
Nm² kg^-2
Nm^-1

Part - B

Generic 2 - Answer All Question

Calculate angle of 1 second of arc.

What is Percentage error?

Show that a screw gauge of pitch 1 mm and 100 divisions is more precise than a vernier caliper with 20 divisions on the sliding scale.
Define one radian.

Discuss the relation of physics with geology.

5.74 g of a substance occupies 1.2 cm³. Express its density to correct significant figures.

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

Part - C

Generic 3 - Answer All Question

Convert a velocity of 72 kmh^-1 into ms^-1 with the help of dimensional analysis.

The vernier scale of a travelling microscope has 50 divisions which coincide with 49 main scale divisions. If each main scale division is 0.5 mm. Calculate the minimum inaccuracy in the measurement of distance.

The kinetic energy of rotation K depends on the angular momentum J and moment of inertia I.

A body travels uniformly a distance of (13.8 ± 0.2) m in a time (4.0 ± 0.3) s. Determine velocity of the body within error limits.

What are the branches of classical physics?
Convert 3 m.s^-2 to km h^-2

Check the correctness of the following equation using dimensional analysis. Make a comment on it. S = ut + 1/4at² where s is the displacement, u is the initial velocity, t is the time and a is the acceleration produced.

Part - D

Generic 5 - Answer All Question

If the value of universal gravitational constant in SI is 6.6\(\times\)10^-11 Nm^-2 kg^-2,then find its value in CGS System.

A planet moves around the sun in nearly circular orbit. Its period of revolution ''T' depends upon.
(i) radius 'r' of orbit, (ii) mass 'm' of the sun and (iii) The gravitational constant G Show dimensionally that T² \(\propto\)r³.

Convert 76 cm of mercury pressure into Nm^-2 using the method of dimensions.

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

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

Obtain an expression for the time period T of a simple pendulum. The time period T depend upon (i) mass 'm' of the bob (ii) length 'l' of the pendulum and (iii) acceleration due to gravity g at the place where the pendulum is suspended. (Constant k = 2π) i.e

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].

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11th Physics Monthly Test - 2( Nature of Physical World and Measurement)

MABS Institution

11th Physics Monthly Test - 2( Nature of Physical World and Measurement)-Aug 2020

Part - A

Multiple Choice Question - Answer All Question

The ratio of one nanometer to one micron is__________________

The number of significant figures in 0.06900 is ________

Zero error of an instrument is a______________.

The word physics is derived from the word_______

A certain body weighs 22.42 g and has a measured volume of 4.7cc. The possible error in thc measurement of mass and volume are 0.0 1 g and 0.1 cc. Then maximum error in the density will be

The unit of surface tension

Universal time is based on:

Imperfections in experimental procedure gives______errors.

SI unit of the universal constant of gravitation (G) is,

Part - B

Generic 2 - Answer All Question

Calculate angle of 1 second of arc.

What is Percentage error?

Show that a screw gauge of pitch 1 mm and 100 divisions is more precise than a vernier caliper with 20 divisions on the sliding scale.

Define one radian.

Discuss the relation of physics with geology.

5.74 g of a substance occupies 1.2 cm3. Express its density to correct significant figures.

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

Part - C

Generic 3 - Answer All Question

Convert a velocity of 72 kmh-1 into ms-1 with the help of dimensional analysis.

The vernier scale of a travelling microscope has 50 divisions which coincide with 49 main scale divisions. If each main scale division is 0.5 mm. Calculate the minimum inaccuracy in the measurement of distance.

The kinetic energy of rotation K depends on the angular momentum J and moment of inertia I.

A body travels uniformly a distance of (13.8 ± 0.2) m in a time (4.0 ± 0.3) s. Determine velocity of the body within error limits.

What are the branches of classical physics?

Convert 3 m.s-2 to km h-2

Check the correctness of the following equation using dimensional analysis. Make a comment on it. S = ut + 1/4at2 where s is the displacement, u is the initial velocity, t is the time and a is the acceleration produced.

Part - D

Generic 5 - Answer All Question

If the value of universal gravitational constant in SI is 6.6\(\times\)10-11 Nm-2 kg-2,then find its value in CGS System.

A planet moves around the sun in nearly circular orbit. Its period of revolution ''T' depends upon. (i) radius 'r' of orbit, (ii) mass 'm' of the sun and (iii) The gravitational constant G Show dimensionally that T2 \(\propto\)r3.

Convert 76 cm of mercury pressure into Nm-2 using the method of dimensions.

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

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

Obtain an expression for the time period T of a simple pendulum. The time period T depend upon (i) mass 'm' of the bob (ii) length 'l' of the pendulum and (iii) acceleration due to gravity g at the place where the pendulum is suspended. (Constant k = 2π) i.e

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].

Comment

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5.74 g of a substance occupies 1.2 cm³. Express its density to correct significant figures.

Convert a velocity of 72 kmh^-1 into ms^-1 with the help of dimensional analysis.

Convert 3 m.s^-2 to km h^-2

Check the correctness of the following equation using dimensional analysis. Make a comment on it. S = ut + 1/4at² where s is the displacement, u is the initial velocity, t is the time and a is the acceleration produced.

If the value of universal gravitational constant in SI is 6.6\(\times\)10^-11 Nm^-2 kg^-2,then find its value in CGS System.

A planet moves around the sun in nearly circular orbit. Its period of revolution ''T' depends upon.
(i) radius 'r' of orbit, (ii) mass 'm' of the sun and (iii) The gravitational constant G Show dimensionally that T² \(\propto\)r³.

Convert 76 cm of mercury pressure into Nm^-2 using the method of dimensions.

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