Several employees in a newly formed group must work together to develop a new product. no one in this group has worked with anyone else in this group before and the development of this product has not been attempted previously. according to the media richness model, which of the following communication channels is most appropriate in this situation?

Face to face meetings

Explanation:

In this case the employees are all new to each other, they don't understand each other, they don't know how to relate with each other and have never worked with each other, so for them to be able to function effectively and efficiently they need to organise a face to face meeting where they can get to know each other and share their opinions about the project. According to media rich model face to face meeting/interviews are the best form of communication when uncertainty and equivocality may be involved.

Face-to-face meetings

Explanation:

Face-to-face meetings are the gathering for formal discussion and communication between members of organization in in-person manner. It help in improvement of efficiency and proper making of decision instead of sending mails to each other.

According to the question,face-to-face meetings should be used by employee to know each other as in-person and develop communication and understand in with each other.They can then discuss about developing product.

Other options are incorrect because joint meeting are not the meeting mechanism which helps in knowing each other personally and increasing efficiency of work .Thus, the correct option is face-to-face meetings.  

According to the media richness model, face to face meetings is the most effective communication channel at it will interact all the people in this particular group. This will help them to work more effectively together in a group as a team. The new product which is to be developed will be developed in an effective manner.