NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Sanitya Srivastava
Subject: Physics
, asked on 24/5/18
The length of two cylinders are measured to be l1 =(5.62?0.01) and l2 = (4.34?0.02). Calculate difference in lengths with error limits?
Answer
1
Ms Eccentric
Subject: Physics
, asked on 19/5/18
Please solve.
Q. Add the three vectors in following figures (a) and (b)
(a)
(b)
Answer
1
Divya
Subject: Physics
, asked on 19/5/18
Q.2. Two rods have lengths measured as (1.8
$\pm $
0.2) m and (2.3
$\pm $
0.1) m. Calculate their combined length with error limits.
[Ans. (4.1
$\pm $
0.3) m]
Answer
1
Yatharth Patel
Subject: Physics
, asked on 18/5/18
PLZ SOLVE Q 17, 18, & 19
Answer
2
अर्कज
Subject: Physics
, asked on 18/5/18
Solve this:
Q. Example 2.3
A force of 10
$\xb7$
5N acts on a particle along a direction making an angle of 37° with the vertical. Find the component of the force in the vertical direction.
Answer
1
Dipesh Kumar Karesia
Subject: Physics
, asked on 18/5/18
plz solve this ....
Example 2.12 The period of oscillation of a simple pendulum is
$T=2\mathrm{\pi}\sqrt{\mathrm{L}/\mathrm{g}}$
Measured value of L is
20.0 cm known to I mm accuracy and time for 100 oscillations of the pendulum is found to be 90 s using a wrist watch 1 s resolution. What is the accuracy in the determination of g?
Answer
1
Eshita Rastogi
Subject: Physics
, asked on 18/5/18
the velocity V of transverse wave in a stretched wire depends on tension F in the wire and its mass per unit length M stablished the formula for velocity of transverse wave with the help of dimensions
Answer
2
Yatharth Patel
Subject: Physics
, asked on 17/5/18
Plz solve q4
$4.\mathrm{The}\mathrm{velocity}\text{'}\mathrm{v}\text{'}\mathrm{of}\mathrm{a}\mathrm{particle}\mathrm{at}\mathrm{time}\mathrm{t}\mathrm{is}\mathrm{given}\mathrm{by},\mathrm{v}=\frac{\mathrm{a}}{\mathrm{t}}+\frac{\mathrm{bt}}{{\mathrm{t}}^{2}+\mathrm{c}}.\mathrm{The}\mathrm{dimension}\mathrm{of}\mathrm{a},\mathrm{b},\mathrm{c}\mathrm{are}\mathrm{respectively}.\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left(\mathrm{A}\right){\mathrm{LT}}^{-2},\mathrm{L},\mathrm{T}\left(\mathrm{B}\right)\mathrm{L},\mathrm{L},{\mathrm{T}}^{2}\left(\mathrm{C}\right)\mathrm{L},\mathrm{LT},{\mathrm{T}}^{-2}\left(\mathrm{D}\right)\mathrm{L},\mathrm{L},{\mathrm{LT}}^{2}$
Answer
1
Yatharth Patel
Subject: Physics
, asked on 17/5/18
Please solve q 2
$\mathbf{2}\mathbf{.}Theequation\frac{dv}{dt}=At-Bvisdescribingtherateofchangeofvelocityofabodyfallingfromrestinaresistingmedium.ThedimensionsofAandBare-\phantom{\rule{0ex}{0ex}}\left(A\right)L{T}^{-3},T\left(B\right)L{T}^{-3},{T}^{-1}\left(C\right)LT,T\left(D\right)LT,{T}^{-1}$
Answer
1
Eshita Rastogi
Subject: Physics
, asked on 17/5/18
Find least count in this
Q.20. Find the maximum probable error in measuring the volume of a box of length 24.0 cm, width 18.6 cm and height 6.0 cm.
Ans. 2.6 %
Answer
1
Eshita Rastogi
Subject: Physics
, asked on 17/5/18
Solve this:?
Q. The radius of a sphere is expressed as (5.3 ? 0.1) cm. Find the percentage error in the volume of the sphere.(no links but proper sol)
Answer
1
Prakhar
Subject: Physics
, asked on 17/5/18
Can you please explain it also as I cant understand the steps! and steps are very important to know.. so please help me
Q. The measured value of a physical quantity exceeds its error by an amount of 75 units. If the percentage error is 15 %, then what is the value of the physical quantity?
Answer
1
Dipesh Kumar Karesia
Subject: Physics
, asked on 16/5/18
Sir plz refer to Ncert pg 27: eg 2.12 not understood. Plz explain .....
Answer
1
Dipesh Kumar Karesia
Subject: Physics
, asked on 16/5/18
Sir I want to know the difference between parallax method and similar method mentioned in NCERT see pg 19.. I will be pleased to see your answers. Thanking you!!
Answer
1
Dipesh Kumar Karesia
Subject: Physics
, asked on 16/5/18
Sir IS RADIAN AND VALUE OF theta are equal????
Answer
1
1
2
3
4
5
Next
What are you looking for?

Q. Add the three vectors in following figures (a) and (b)

(a)

(b)

[Ans. (4.1 $\pm $ 0.3) m]

Q. Example 2.3

A force of 10$\xb7$5N acts on a particle along a direction making an angle of 37° with the vertical. Find the component of the force in the vertical direction.

Example 2.12 The period of oscillation of a simple pendulum is $T=2\mathrm{\pi}\sqrt{\mathrm{L}/\mathrm{g}}$ Measured value of L is

20.0 cm known to I mm accuracy and time for 100 oscillations of the pendulum is found to be 90 s using a wrist watch 1 s resolution. What is the accuracy in the determination of g?

$4.\mathrm{The}\mathrm{velocity}\text{'}\mathrm{v}\text{'}\mathrm{of}\mathrm{a}\mathrm{particle}\mathrm{at}\mathrm{time}\mathrm{t}\mathrm{is}\mathrm{given}\mathrm{by},\mathrm{v}=\frac{\mathrm{a}}{\mathrm{t}}+\frac{\mathrm{bt}}{{\mathrm{t}}^{2}+\mathrm{c}}.\mathrm{The}\mathrm{dimension}\mathrm{of}\mathrm{a},\mathrm{b},\mathrm{c}\mathrm{are}\mathrm{respectively}.\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left(\mathrm{A}\right){\mathrm{LT}}^{-2},\mathrm{L},\mathrm{T}\left(\mathrm{B}\right)\mathrm{L},\mathrm{L},{\mathrm{T}}^{2}\left(\mathrm{C}\right)\mathrm{L},\mathrm{LT},{\mathrm{T}}^{-2}\left(\mathrm{D}\right)\mathrm{L},\mathrm{L},{\mathrm{LT}}^{2}$

$\mathbf{2}\mathbf{.}Theequation\frac{dv}{dt}=At-Bvisdescribingtherateofchangeofvelocityofabodyfallingfromrestinaresistingmedium.ThedimensionsofAandBare-\phantom{\rule{0ex}{0ex}}\left(A\right)L{T}^{-3},T\left(B\right)L{T}^{-3},{T}^{-1}\left(C\right)LT,T\left(D\right)LT,{T}^{-1}$

Q.20. Find the maximum probable error in measuring the volume of a box of length 24.0 cm, width 18.6 cm and height 6.0 cm.

Ans. 2.6 %

Q. The radius of a sphere is expressed as (5.3 ? 0.1) cm. Find the percentage error in the volume of the sphere.(no links but proper sol)

Q. The measured value of a physical quantity exceeds its error by an amount of 75 units. If the percentage error is 15 %, then what is the value of the physical quantity?