11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil என்னுயிர் என்பேன் -துணைப்பாடம் - இசைத்தமிழர் இருவர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
Published on: 10/11/2020
11th Standard Physics English Medium Free Online Test 1 Mark Questions 2020
Download Tamil Nadu 11th Standard Physics question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Physics Test1.
If the mass and radius of the Earth are both doubled, then the acceleration due to gravity g'
remains same
\({g\over 2}\)
2g
4g
2.
The area covered under force and displacement graph is _______________.
work done
acceleration
power
kinetic energy
3.
A stationary particle explodes into two particles of masses m1 and m2, which move in opposite directions with velocities v1 and v2. The ratio of their kinetic energies E1/E2 is ______________
m2/m1
m1/m2
1
m1v2/m2v1
4.
Consider a system of two particles having masses m1 and m2 If the particle of mass m1 is pushed towards the mass centre of particles through a distance d, by what distance would be particle of mass m2 move so all to keep the mass centre of particles at the original position?
\(\frac { m_{ 1 } }{ { m }_{ 1 }+{ m }_{ 2 } } \)d
\(\frac { { m }_{ 1 } }{ { m }_{ 2 } } \)d
d
\(\frac { { m }_{ 2 } }{ { m }_{ 1 } } \)d
5.
Two bodies of mass 1 kg and 3 kg have position vectors \(\hat { i } +2\hat { j } +\hat { k } \) and respectively. The centre of mass of this system has a position vector __________.
\(-2\hat { i } -\hat { j } +\hat { k } \).
\(2\hat { i } -\hat { j } -2\hat { k } \).
\(-\hat { i } +\hat { j } +\hat { k } \)
\(-2\hat { i } +2\hat { k } \).
6.
A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road. If the banking angle is 45°, the speed of the car is _____________.
20ms-1
30ms-1
5ms-1
10ms-1
7.
The time dependence of a Physical quantity p is given by P = P0 exp(-at2) where a is a constant and t is the time. The constant a _____________.
is diemensionless
has dimensions[T-2]
has dimensions[T2]
has dimensions of P
8.
Which two of the following five physical parameters have the same dimensions?
1. energy density
2. refractive index
3. dielectric constant
4. Young's modulus
5. magnetic field
1 and 4
1 and 5
2 and 4
3 and 5
9.
A body of mass M hits normally a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is ______________.
MV
1.5 MV
2MV
zero
10.
If E and B respectively, represent electric field and magnetic induction field, then the ratio \(\frac{E}{B}\) has the dimensions of _____________.
angle
acceleration
velocity
displacement
11.
Identify the pair of physical quantities having the same dimensions.
Light year and period of a pendulum
Angular momentum and torque
Energy and Modulus of elasticity
Torque and work
12.
The mass of a body measures _______________.
density
centre of mass
moment of inertia
coefficient of inertia
13.
A vector having unit magnitude is called________vector.
like
unlike
orthogonal
unit
14.
The dimension of a quantity \(hy \over c\) where h is the planck's constants, \(\gamma\) is the frequency and c is the velocity of light are _______________.
MT-1
MLT-1
MLT-2
ML2T2
15.
What is the ratio of the angular speeds of the minute hand and second-hand of a clock?
1: 12
12: 1
1: 60
60: 1
16.
If \(\bar A\) and \(\bar B\) denotes the sides of a parallelogram whose area is \(\frac{1}{1}\left| A \right|\left| B \right|\) the angle between \(\bar A\) and \(\bar B\) is _______________
60°
45°
30°
90°
17.
For a projectile, projected at an angle with the horizontal, the resultant velocity is _____________
\(\sqrt{u^2+g^2t^2-2utg\quad sin\theta}\)
\(\sqrt{u^2+g^2t^2}\)
\(\sqrt{u^2-g^2t^2}\)
\(\sqrt{u^2+g^2t^2+2utg\quad sin\theta}\)
18.
A man should hold his umbrella with vertical, when rain falls vertically with velocity \(\vec { { V }_{ R } } \) and man walks horizontally with velocity \(\vec{{V}_{M}}\) is _____________
\(tan^{-1}(\frac{\vec{V}_{M}}{\vec{V}_{R}})\)
\(tan^{-1}(\frac{\vec{V}_{R}}{\vec{V}_{M}})\)
tan-1(VR)
tan-1(VM)
19.
A body of mass 20 kg moving with a uniform velocity of 4 ms-1. Then the net force acting on a body is _____________.
constant
increase
decrease
Zero
20.
The speed of a solid sphere after rolling down from rest without sliding on an inclined plane of vertical height h is,
\( \sqrt \frac{4}{3}gh\)
\( \sqrt \frac{10}{7}gh\)
\(\sqrt{2gh}\)
\( \sqrt \frac{1}{2}gh\)
21.
The component of position vector \(\overrightarrow { r } \) along x-axis will maximum value if ____________
\(\overrightarrow { r } \) is along the x - axis
\(\overrightarrow { r } \) makes an angle of 45° with x - axis
\(\overrightarrow { r } \) is along the y - axis
\(\overrightarrow { r } \) is along - ve y - axis
22.
A wind-powered generator converts wind energy into electric energy. Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electrical energy. For wind speed v, the electrical power output will be proportional to
v
v2
v3
v4
23.
Two masses m1 and m2 are experiencing the same force where m1 < m2.The ratio of their acceleration \(\frac { { a }_{ 1 } }{ { a }_{ 2 } } \) is _____________.
1
less than 1
greater than 1
all the three cases
24.
25.
The dimensional formula for gravitational constant G is
[ML3T-2]
[M-1L3T-2]
[M-1L-3T-2]
[ML-3T2]
1.
g = \(\frac{GM_e}{R^2_e}\)
Me = 2 Me Re= 2 Re then,
g' = \(\frac{G \times 2M_e}{(2R_e)^2}\) = \(2 \frac{Gm_e}{4R_e^2}\)
\(2 \frac{Gm_e}{4R_e^2}\) = \(\cfrac g2\)
2.
(a)
work done
3.
(a)
m2/m1
4.
(b)
\(\frac { { m }_{ 1 } }{ { m }_{ 2 } } \)d
5.
(a)
\(-2\hat { i } -\hat { j } +\hat { k } \).
6.
(b)
30ms-1
7.
(b)
has dimensions[T-2]
8.
(a)
1 and 4
9.
(c)
2MV
10.
(c)
velocity
11.
(d)
Torque and work
12.
(d)
coefficient of inertia
13.
(d)
unit
14.
(b)
MLT-1
15.
(c)
1: 60
16.
(b)
45°
17.
(b)
\(\sqrt{u^2+g^2t^2}\)
18.
(a)
\(tan^{-1}(\frac{\vec{V}_{M}}{\vec{V}_{R}})\)
19.
(d)
Zero
20.
Potential energy = Translational kinetic energy + Rotational kinetic energy
\(m g h=\frac{1}{2} m v^{2}+\frac{1}{2} I \omega^{2} \)
\(=\frac{1}{2} m v^{2}+\frac{1}{2} \times \frac{2}{5} M R^{2} \times \frac{v^{2}}{R^{2}}\left[\omega=\frac{v}{R}\right] \)
\(=\frac{1}{2} m v^{2}+\frac{1}{5} m v^{2} \)
\(=\frac{5 m v^{2}+2 m v^{2}}{10}=\frac{7 m v^{2}}{10} \)
\(m g h=\frac{7 m v^{2}}{10} \)
\(g h=\frac{7 v^{2}}{10} \)
\(\therefore v^{2}=\frac{10 g h}{7} \)
\(\therefore v=\frac{\sqrt{10 g h}}{7} \)
21.
(a)
\(\overrightarrow { r } \) is along the x - axis
22.
\(\text { Force }=v \frac{d m}{d t}\)
\(=v \frac{d}{d t} \text { (volume } \times \text { density) }\)
\(=v \frac{d}{d t}(A x p) \)
\(=v A p \frac{d x}{d t} \)
\(=v \times A p \times v \)
\(=A p v^{2} \)
Power = Force x Velocity
\(=A p v^{2} \times v=A p v^{3}\)
\(\therefore \text { Power } \alpha v^{3}\)
23.
(c)
greater than 1
24.
(b)
25.
\(\text { Gravitational constant } G=\frac{F r^{2}}{m_{l} m_{2}}\)
\(\text { Dimensional formula of } \mathrm{G}=\frac{\left[\mathrm{MLT}^{-2}\right]\left[\mathrm{L}^{2}\right]}{[\mathrm{M}][\mathrm{M}]}\)
\(=\frac{\mathrm{ML}^{3} \mathrm{~T}^{-2}}{\mathrm{M}^{2}}=\mathrm{M}^{-1} \mathrm{~L}^{3} \mathrm{~T}^{-2}\)
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
French
Tamilnadu Stateboard Standards
