Physics-
General
Easy
Question
Three different objects of masses m1 , m2 and m3 are allowed to fall from rest and from the same point ‘O’ along three different frictionless paths. The speeds of the three objects, on reaching the ground, will be in the ratio of :
- 1 : 1 : 1
The correct answer is: 1 : 1 : 1
Related Questions to study
Physics-
A particle starts from rest, accelerates at 2 m/s2 for 10 s and then goes for constant speed for 30s and then decelerates at 4 m/s2 till it stops. What is the distance travelled by it :
A particle starts from rest, accelerates at 2 m/s2 for 10 s and then goes for constant speed for 30s and then decelerates at 4 m/s2 till it stops. What is the distance travelled by it :
Physics-General
Chemistry-
Rearrangement is property of ______
Rearrangement is property of ______
Chemistry-General
Chemistry-
Arrange the following in order of increasing order of their stability.
I) 
II) 
III) 
IV) 
Arrange the following in order of increasing order of their stability.
I)
II)
III)
IV)
Chemistry-General
Chemistry-
The most unlikely representation of resonance structures of p-nitrophenoxide ion is
The most unlikely representation of resonance structures of p-nitrophenoxide ion is
Chemistry-General
Physics-
A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 850 metres is :
A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 850 metres is :
Physics-General
Physics-
Figure shows four paths for a kicked football. Ignoring the effects of air on the flight, rank the paths according to initial horizontal velocity component, highest first :
Figure shows four paths for a kicked football. Ignoring the effects of air on the flight, rank the paths according to initial horizontal velocity component, highest first :
Physics-General
Physics-
A ball is rolled off the edge of horizontal table at a speed of 4m/sec. It hits the ground after 0.4 second. Which statement given below is true :
A ball is rolled off the edge of horizontal table at a speed of 4m/sec. It hits the ground after 0.4 second. Which statement given below is true :
Physics-General
Physics-
Speed of a body on reaching the point from which it was projected upwards, is :
Speed of a body on reaching the point from which it was projected upwards, is :
Physics-General
Physics-
A bullet is fired from a cannon with velocity 500 m/s. If the angle of projection is 15
and g = 10 m/s2 Then the range is :
A bullet is fired from a cannon with velocity 500 m/s. If the angle of projection is 15 and g = 10 m/s2 Then the range is :
Physics-General
Chemistry-
The typical reaction of benzene and other aromatic compounds are electrophilic substitution. Presence of electron donating group activates the ring towards electrophilic substitution, while presence of electron withdrawing group deactivates the ring towards electrophilic substitution but at the same time activates the ring towards nucleophilic substitution. Some groups are predominantly meta-directing and all of these are deactivating. Except halogen, most of the O– and P– directing groups are activating groups.
Which of the following compound is not formed.
X represents mixture of organic compounds. The mixture does not contain.
The typical reaction of benzene and other aromatic compounds are electrophilic substitution. Presence of electron donating group activates the ring towards electrophilic substitution, while presence of electron withdrawing group deactivates the ring towards electrophilic substitution but at the same time activates the ring towards nucleophilic substitution. Some groups are predominantly meta-directing and all of these are deactivating. Except halogen, most of the O– and P– directing groups are activating groups.
Which of the following compound is not formed.
X represents mixture of organic compounds. The mixture does not contain.
Chemistry-General
Chemistry-
A third group is least likely to enter between two groups in the meta relationship. This is the result of steric hindrance and increases in importance with the size of the groups on the ring and with the size of the attacking species.
When a Meta-directing group is meta to an ortho-para directing group, the incoming group primarily goes ortho to the meta directing group rather than para.
A third group is least likely to enter between two groups in the meta relationship. This is the result of steric hindrance and increases in importance with the size of the groups on the ring and with the size of the attacking species.
When a Meta-directing group is meta to an ortho-para directing group, the incoming group primarily goes ortho to the meta directing group rather than para.
Chemistry-General
Chemistry-
A third group is least likely to enter between two groups in the meta relationship. This is the result of steric hindrance and increases in importance with the size of the groups on the ring and with the size of the attacking species.
When a Meta-directing group is meta to an ortho-para directing group, the incoming group primarily goes ortho to the meta directing group rather than para.
A third group is least likely to enter between two groups in the meta relationship. This is the result of steric hindrance and increases in importance with the size of the groups on the ring and with the size of the attacking species.
When a Meta-directing group is meta to an ortho-para directing group, the incoming group primarily goes ortho to the meta directing group rather than para.
Chemistry-General
Chemistry-
A third group is least likely to enter between two groups in the meta relationship. This is the result of steric hindrance and increases in importance with the size of the groups on the ring and with the size of the attacking species.
When a Meta-directing group is meta to an ortho-para directing group, the incoming group primarily goes ortho to the meta directing group rather than para.
A third group is least likely to enter between two groups in the meta relationship. This is the result of steric hindrance and increases in importance with the size of the groups on the ring and with the size of the attacking species.
When a Meta-directing group is meta to an ortho-para directing group, the incoming group primarily goes ortho to the meta directing group rather than para.
Chemistry-General
Chemistry-
Benzene is converted to toluene by :
Benzene is converted to toluene by :
Chemistry-General
Chemistry-
Identify Y in the change;
Identify Y in the change;
Chemistry-General
